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Posted to dev@cloudstack.apache.org by Paul Angus <pa...@shapeblue.com> on 2012/06/06 10:37:05 UTC
NetScaler Best Practices
Hi,
I'm looking for best practices with respect to:
a. when a client should be considering using a NetScaler for load balancing rather than the virtual router
b. the capacity setting for any given NetScaler model.
I understand that it depends on the type of load that the virtual router or NetScaler would experience, but we need to have some guidelines as a starting point.
Paul Angus
Consultant
ShapeBlue
paul.angus@shapeblue.com
www.shapeblue.com
ShapeBlue provides a range of strategic and technical consulting and implementation services to help IT Service Providers and Enterprises to build a true IaaS compute cloud. ShapeBlue’s expertise, combined with CloudStack technology, allows IT Service Providers and Enterprises to deliver true, utility based, IaaS to the customer or end-user.
________________________________
This email and any attachments to it may be confidential and are intended solely for the use of the individual to whom it is addressed. Any views or opinions expressed are solely those of the author and do not necessarily represent those of Shape Blue Ltd. If you are not the intended recipient of this email, you must neither take any action based upon its contents, nor copy or show it to anyone. Please contact the sender if you believe you have received this email in error. Shape Blue Ltd is a company incorporated in England & Wales.
Re: NetScaler Best Practices
Posted by Chiradeep Vittal <Ch...@citrix.com>.
This bug has some details of the optimizations done to HAProxy
configuration and the resulting performance
http://bugs.cloudstack.org/browse/CS-8350
On 6/7/12 7:22 AM, "David Nalley" <da...@gnsa.us> wrote:
>On Thu, Jun 7, 2012 at 10:19 AM, Paul Angus <pa...@shapeblue.com>
>wrote:
>> Thanks Murali,
>>
>> I think they are questions that need some answers, otherwise we're just
>>blindly guessing. The virtual routers don't give any performance
>>information out so we can't monitor them directly to see when a
>>NetScaler might be appropriate.
>>
>> Fine-tuning capacity is ok, but we don't have a number to start with.
>>
>
>We've got a number of folks who have modified the systemVMs to provide
>perf info over SNMP for that reason - and I think there is a RFE for
>that as well.
>
>--David
Re: NetScaler Best Practices
Posted by Chiradeep Vittal <Ch...@citrix.com>.
This bug has some details of the optimizations done to HAProxy
configuration and the resulting performance
http://bugs.cloudstack.org/browse/CS-8350
On 6/7/12 7:22 AM, "David Nalley" <da...@gnsa.us> wrote:
>On Thu, Jun 7, 2012 at 10:19 AM, Paul Angus <pa...@shapeblue.com>
>wrote:
>> Thanks Murali,
>>
>> I think they are questions that need some answers, otherwise we're just
>>blindly guessing. The virtual routers don't give any performance
>>information out so we can't monitor them directly to see when a
>>NetScaler might be appropriate.
>>
>> Fine-tuning capacity is ok, but we don't have a number to start with.
>>
>
>We've got a number of folks who have modified the systemVMs to provide
>perf info over SNMP for that reason - and I think there is a RFE for
>that as well.
>
>--David
Re: NetScaler Best Practices
Posted by David Nalley <da...@gnsa.us>.
On Thu, Jun 7, 2012 at 10:19 AM, Paul Angus <pa...@shapeblue.com> wrote:
> Thanks Murali,
>
> I think they are questions that need some answers, otherwise we're just blindly guessing. The virtual routers don't give any performance information out so we can't monitor them directly to see when a NetScaler might be appropriate.
>
> Fine-tuning capacity is ok, but we don't have a number to start with.
>
We've got a number of folks who have modified the systemVMs to provide
perf info over SNMP for that reason - and I think there is a RFE for
that as well.
--David
Re: NetScaler Best Practices
Posted by David Nalley <da...@gnsa.us>.
On Thu, Jun 7, 2012 at 10:19 AM, Paul Angus <pa...@shapeblue.com> wrote:
> Thanks Murali,
>
> I think they are questions that need some answers, otherwise we're just blindly guessing. The virtual routers don't give any performance information out so we can't monitor them directly to see when a NetScaler might be appropriate.
>
> Fine-tuning capacity is ok, but we don't have a number to start with.
>
We've got a number of folks who have modified the systemVMs to provide
perf info over SNMP for that reason - and I think there is a RFE for
that as well.
--David
RE: NetScaler Best Practices
Posted by Paul Angus <pa...@shapeblue.com>.
Thanks Murali,
I think they are questions that need some answers, otherwise we're just blindly guessing. The virtual routers don't give any performance information out so we can't monitor them directly to see when a NetScaler might be appropriate.
Fine-tuning capacity is ok, but we don't have a number to start with.
Paul Angus
Consultant
paul.angus@shapeblue.com
www.shapeblue.com
-----Original Message-----
From: Murali Reddy [mailto:Murali.Reddy@citrix.com]
Sent: Thursday, June 07, 2012 11:02 AM
To: cloudstack-users@incubator.apache.org; cloudstack-dev@incubator.apache.org
Subject: Re: NetScaler Best Practices
There isn't a best practice document. At this point I doubt if there could be clear recommendation when a customer should move from virtual router to NetScaler. Logically any customer that want high throughput or think software load balancer in virtual router will not fit their needs could consider a network offering that gives NetScaler as LB. As CloudStack begins to have deeper integration (e.g. SSL termination) in upcoming releases with external devices their value add becomes more evident.
There is no recommendation for the 'capacity' as well. This value could depend on the throughput/pps a particular VPX/MPX/SDX device can handle or licensed for. There is no inherent notion of tenant in the NetScaler devices (at least with MPX, VPX) based on which you can reserve the resources (CPU cores, throughput etc) or provide QoS guarantees. So CloudStack currently uses simple hueristic of number of tenants a device can be used as capacity of the device. This value is cloud admin configured and editable so he can fine tune what capacity should be.
On 06/06/12 2:07 PM, "Paul Angus" <pa...@shapeblue.com> wrote:
>Hi,
>
>I'm looking for best practices with respect to:
>
>a. when a client should be considering using a NetScaler for load
>balancing rather than the virtual router b. the capacity setting for
>any given NetScaler model.
>
>I understand that it depends on the type of load that the virtual
>router or NetScaler would experience, but we need to have some
>guidelines as a starting point.
>
>
>Paul Angus
>Consultant
>ShapeBlue
>
>
>paul.angus@shapeblue.com
>www.shapeblue.com
>
>ShapeBlue provides a range of strategic and technical consulting and
>implementation services to help IT Service Providers and Enterprises to
>build a true IaaS compute cloud. ShapeBlue¹s expertise, combined with
>CloudStack technology, allows IT Service Providers and Enterprises to
>deliver true, utility based, IaaS to the customer or end-user.
>
>________________________________
>
>This email and any attachments to it may be confidential and are
>intended solely for the use of the individual to whom it is addressed.
>Any views or opinions expressed are solely those of the author and do
>not necessarily represent those of Shape Blue Ltd. If you are not the
>intended recipient of this email, you must neither take any action
>based upon its contents, nor copy or show it to anyone. Please contact
>the sender if you believe you have received this email in error. Shape
>Blue Ltd is a company incorporated in England & Wales.
>
ShapeBlue provides a range of strategic and technical consulting and implementation services to help IT Service Providers and Enterprises to build a true IaaS compute cloud. ShapeBlue’s expertise, combined with CloudStack technology, allows IT Service Providers and Enterprises to deliver true, utility based, IaaS to the customer or end-user.
________________________________
This email and any attachments to it may be confidential and are intended solely for the use of the individual to whom it is addressed. Any views or opinions expressed are solely those of the author and do not necessarily represent those of Shape Blue Ltd. If you are not the intended recipient of this email, you must neither take any action based upon its contents, nor copy or show it to anyone. Please contact the sender if you believe you have received this email in error. Shape Blue Ltd is a company incorporated in England & Wales.
RE: NetScaler Best Practices
Posted by Paul Angus <pa...@shapeblue.com>.
Thanks Murali,
I think they are questions that need some answers, otherwise we're just blindly guessing. The virtual routers don't give any performance information out so we can't monitor them directly to see when a NetScaler might be appropriate.
Fine-tuning capacity is ok, but we don't have a number to start with.
Paul Angus
Consultant
paul.angus@shapeblue.com
www.shapeblue.com
-----Original Message-----
From: Murali Reddy [mailto:Murali.Reddy@citrix.com]
Sent: Thursday, June 07, 2012 11:02 AM
To: cloudstack-users@incubator.apache.org; cloudstack-dev@incubator.apache.org
Subject: Re: NetScaler Best Practices
There isn't a best practice document. At this point I doubt if there could be clear recommendation when a customer should move from virtual router to NetScaler. Logically any customer that want high throughput or think software load balancer in virtual router will not fit their needs could consider a network offering that gives NetScaler as LB. As CloudStack begins to have deeper integration (e.g. SSL termination) in upcoming releases with external devices their value add becomes more evident.
There is no recommendation for the 'capacity' as well. This value could depend on the throughput/pps a particular VPX/MPX/SDX device can handle or licensed for. There is no inherent notion of tenant in the NetScaler devices (at least with MPX, VPX) based on which you can reserve the resources (CPU cores, throughput etc) or provide QoS guarantees. So CloudStack currently uses simple hueristic of number of tenants a device can be used as capacity of the device. This value is cloud admin configured and editable so he can fine tune what capacity should be.
On 06/06/12 2:07 PM, "Paul Angus" <pa...@shapeblue.com> wrote:
>Hi,
>
>I'm looking for best practices with respect to:
>
>a. when a client should be considering using a NetScaler for load
>balancing rather than the virtual router b. the capacity setting for
>any given NetScaler model.
>
>I understand that it depends on the type of load that the virtual
>router or NetScaler would experience, but we need to have some
>guidelines as a starting point.
>
>
>Paul Angus
>Consultant
>ShapeBlue
>
>
>paul.angus@shapeblue.com
>www.shapeblue.com
>
>ShapeBlue provides a range of strategic and technical consulting and
>implementation services to help IT Service Providers and Enterprises to
>build a true IaaS compute cloud. ShapeBlue¹s expertise, combined with
>CloudStack technology, allows IT Service Providers and Enterprises to
>deliver true, utility based, IaaS to the customer or end-user.
>
>________________________________
>
>This email and any attachments to it may be confidential and are
>intended solely for the use of the individual to whom it is addressed.
>Any views or opinions expressed are solely those of the author and do
>not necessarily represent those of Shape Blue Ltd. If you are not the
>intended recipient of this email, you must neither take any action
>based upon its contents, nor copy or show it to anyone. Please contact
>the sender if you believe you have received this email in error. Shape
>Blue Ltd is a company incorporated in England & Wales.
>
ShapeBlue provides a range of strategic and technical consulting and implementation services to help IT Service Providers and Enterprises to build a true IaaS compute cloud. ShapeBlue’s expertise, combined with CloudStack technology, allows IT Service Providers and Enterprises to deliver true, utility based, IaaS to the customer or end-user.
________________________________
This email and any attachments to it may be confidential and are intended solely for the use of the individual to whom it is addressed. Any views or opinions expressed are solely those of the author and do not necessarily represent those of Shape Blue Ltd. If you are not the intended recipient of this email, you must neither take any action based upon its contents, nor copy or show it to anyone. Please contact the sender if you believe you have received this email in error. Shape Blue Ltd is a company incorporated in England & Wales.
RE: Failed to create vloume(same can not create guest vm from
template)
Posted by Abhinandan Prateek <Ab...@citrix.com>.
There is problem with your secondary storage SR (cf67c48d-02ab-a11e-d8b8-9c19f01fab70).
-abhi
>-----Original Message-----
>From: Jewel Nuruddin [mailto:jewel.nuruddin@yahoo.com]
>Sent: Thursday, June 07, 2012 4:31 PM
>To: cloudstack-users@incubator.apache.org; cloudstack-
>dev@incubator.apache.org
>Subject: Failed to create vloume(same can not create guest vm from
>template)
>
>Hi All,
>
>I have another problem, I could not create volume from snapshot.
>
>Here is my log
>If some one can help me.
>
>2012-06-07 19:55:40,368 DEBUG [agent.transport.Request] (Job-Executor-
>10:job-366) Seq 5-49610833: Sending { Cmd , MgmtId: 264216224466399, via:
>5, Ver: v1, Flags: 100011,
>[{"CreateVolumeFromSnapshotCommand":{"primaryStoragePoolNameLabel"
>:"30029a4c-c809-3980-8bd1-6287111bbe0c","snapshotUuid":"958045ab-f02d-
>4ce6-bb11-2ac2847c43ee","snapshotName":"e007a574-eca9-4e2b-9306-
>7ec9580ee622_ROOT-
>50_20120604061343","secondaryStorageUrl":"nfs://192.168.2.178/export/sec
>ondary","dcId":1,"accountId":2,"volumeId":66,"wait":600}}] }
>2012-06-07 19:55:40,368 DEBUG [agent.transport.Request] (Job-Executor-
>10:job-366) Seq 5-49610833: Executing: { Cmd , MgmtId: 264216224466399,
>via: 5, Ver: v1, Flags: 100011,
>[{"CreateVolumeFromSnapshotCommand":{"primaryStoragePoolNameLabel"
>:"30029a4c-c809-3980-8bd1-6287111bbe0c","snapshotUuid":"958045ab-f02d-
>4ce6-bb11-2ac2847c43ee","snapshotName":"e007a574-eca9-4e2b-9306-
>7ec9580ee622_ROOT-
>50_20120604061343","secondaryStorageUrl":"nfs://192.168.2.178/export/sec
>ondary","dcId":1,"accountId":2,"volumeId":66,"wait":600}}] }
>2012-06-07 19:56:51,947 ERROR [cloud.storage.StorageManagerImpl] (Job-
>Executor-10:job-366) Failed to create volume from e007a574-eca9-4e2b-9306-
>7ec9580ee622_ROOT-50_20120604061343 on pool
>Pool[200|NetworkFilesystem] due to null due to failed to scan sr cf67c48d-
>02ab-a11e-d8b8-9c19f01fab70
>com.cloud.utils.exception.CloudRuntimeException: Failed to create volume
>from e007a574-eca9-4e2b-9306-7ec9580ee622_ROOT-50_20120604061343 on
>pool Pool[200|NetworkFilesystem]
>
>
>Thanks
RE: Very basic query but no boday ask me about creating template
from guest vm
Posted by Venkata SwamyBabu Budumuru <ve...@citrix.com>.
Also we have an option to create a template out of a ROOT disk (pre-requisite is: instance needs to be in stopped state).
-SWAMY
-----Original Message-----
From: Abhinandan Prateek [mailto:Abhinandan.Prateek@citrix.com]
Sent: Thursday, June 07, 2012 4:15 PM
To: cloudstack-users@incubator.apache.org; cloudstack-dev@incubator.apache.org
Subject: RE: Very basic query but no boday ask me about creating template from guest vm
>-----Original Message-----
>From: Jewel Nuruddin [mailto:jewel.nuruddin@yahoo.com]
>Sent: Thursday, June 07, 2012 4:09 PM
>To: cloudstack-users@incubator.apache.org; cloudstack-
>dev@incubator.apache.org
>Subject: Very basic query but no boday ask me about creating template
>from guest vm
>
>Hi,
>
>So what if user work on a guest and he did lots of work on his vm and
>he want to keep this backup, so you guys ask me to take a snaphot, so
>in Cloudstack this snaphot will not run? then how can user get his
>current stats in a new vm ?
>well you said make a template from this snapshot ....right ? yes I can
>make template .....but this template is not start or I can not create
>new vm from this template......
What error do you get when you create a VM from the template ?
-abhi
RE: Very basic query but no boday ask me about creating template
from guest vm
Posted by Venkata SwamyBabu Budumuru <ve...@citrix.com>.
Also we have an option to create a template out of a ROOT disk (pre-requisite is: instance needs to be in stopped state).
-SWAMY
-----Original Message-----
From: Abhinandan Prateek [mailto:Abhinandan.Prateek@citrix.com]
Sent: Thursday, June 07, 2012 4:15 PM
To: cloudstack-users@incubator.apache.org; cloudstack-dev@incubator.apache.org
Subject: RE: Very basic query but no boday ask me about creating template from guest vm
>-----Original Message-----
>From: Jewel Nuruddin [mailto:jewel.nuruddin@yahoo.com]
>Sent: Thursday, June 07, 2012 4:09 PM
>To: cloudstack-users@incubator.apache.org; cloudstack-
>dev@incubator.apache.org
>Subject: Very basic query but no boday ask me about creating template
>from guest vm
>
>Hi,
>
>So what if user work on a guest and he did lots of work on his vm and
>he want to keep this backup, so you guys ask me to take a snaphot, so
>in Cloudstack this snaphot will not run? then how can user get his
>current stats in a new vm ?
>well you said make a template from this snapshot ....right ? yes I can
>make template .....but this template is not start or I can not create
>new vm from this template......
What error do you get when you create a VM from the template ?
-abhi
Failed to create vloume(same can not create guest vm from template)
Posted by Jewel Nuruddin <je...@yahoo.com>.
Hi All,
I have another problem, I could not create volume from snapshot.
Here is my log
If some one can help me.
2012-06-07 19:55:40,368 DEBUG [agent.transport.Request] (Job-Executor-10:job-366) Seq 5-49610833: Sending { Cmd , MgmtId: 264216224466399, via: 5, Ver: v1, Flags: 100011, [{"CreateVolumeFromSnapshotCommand":{"primaryStoragePoolNameLabel":"30029a4c-c809-3980-8bd1-6287111bbe0c","snapshotUuid":"958045ab-f02d-4ce6-bb11-2ac2847c43ee","snapshotName":"e007a574-eca9-4e2b-9306-7ec9580ee622_ROOT-50_20120604061343","secondaryStorageUrl":"nfs://192.168.2.178/export/secondary","dcId":1,"accountId":2,"volumeId":66,"wait":600}}] }
2012-06-07 19:55:40,368 DEBUG [agent.transport.Request] (Job-Executor-10:job-366) Seq 5-49610833: Executing: { Cmd , MgmtId: 264216224466399, via: 5, Ver: v1, Flags: 100011, [{"CreateVolumeFromSnapshotCommand":{"primaryStoragePoolNameLabel":"30029a4c-c809-3980-8bd1-6287111bbe0c","snapshotUuid":"958045ab-f02d-4ce6-bb11-2ac2847c43ee","snapshotName":"e007a574-eca9-4e2b-9306-7ec9580ee622_ROOT-50_20120604061343","secondaryStorageUrl":"nfs://192.168.2.178/export/secondary","dcId":1,"accountId":2,"volumeId":66,"wait":600}}] }
2012-06-07 19:56:51,947 ERROR [cloud.storage.StorageManagerImpl] (Job-Executor-10:job-366) Failed to create volume from e007a574-eca9-4e2b-9306-7ec9580ee622_ROOT-50_20120604061343 on pool Pool[200|NetworkFilesystem] due to null due to failed to scan sr cf67c48d-02ab-a11e-d8b8-9c19f01fab70
com.cloud.utils.exception.CloudRuntimeException: Failed to create volume from e007a574-eca9-4e2b-9306-7ec9580ee622_ROOT-50_20120604061343 on pool Pool[200|NetworkFilesystem]
Thanks
Failed to create vloume(same can not create guest vm from template)
Posted by Jewel Nuruddin <je...@yahoo.com>.
Hi All,
I have another problem, I could not create volume from snapshot.
Here is my log
If some one can help me.
2012-06-07 19:55:40,368 DEBUG [agent.transport.Request] (Job-Executor-10:job-366) Seq 5-49610833: Sending { Cmd , MgmtId: 264216224466399, via: 5, Ver: v1, Flags: 100011, [{"CreateVolumeFromSnapshotCommand":{"primaryStoragePoolNameLabel":"30029a4c-c809-3980-8bd1-6287111bbe0c","snapshotUuid":"958045ab-f02d-4ce6-bb11-2ac2847c43ee","snapshotName":"e007a574-eca9-4e2b-9306-7ec9580ee622_ROOT-50_20120604061343","secondaryStorageUrl":"nfs://192.168.2.178/export/secondary","dcId":1,"accountId":2,"volumeId":66,"wait":600}}] }
2012-06-07 19:55:40,368 DEBUG [agent.transport.Request] (Job-Executor-10:job-366) Seq 5-49610833: Executing: { Cmd , MgmtId: 264216224466399, via: 5, Ver: v1, Flags: 100011, [{"CreateVolumeFromSnapshotCommand":{"primaryStoragePoolNameLabel":"30029a4c-c809-3980-8bd1-6287111bbe0c","snapshotUuid":"958045ab-f02d-4ce6-bb11-2ac2847c43ee","snapshotName":"e007a574-eca9-4e2b-9306-7ec9580ee622_ROOT-50_20120604061343","secondaryStorageUrl":"nfs://192.168.2.178/export/secondary","dcId":1,"accountId":2,"volumeId":66,"wait":600}}] }
2012-06-07 19:56:51,947 ERROR [cloud.storage.StorageManagerImpl] (Job-Executor-10:job-366) Failed to create volume from e007a574-eca9-4e2b-9306-7ec9580ee622_ROOT-50_20120604061343 on pool Pool[200|NetworkFilesystem] due to null due to failed to scan sr cf67c48d-02ab-a11e-d8b8-9c19f01fab70
com.cloud.utils.exception.CloudRuntimeException: Failed to create volume from e007a574-eca9-4e2b-9306-7ec9580ee622_ROOT-50_20120604061343 on pool Pool[200|NetworkFilesystem]
Thanks
RE: Very basic query but no boday ask me about creating template
from guest vm
Posted by Abhinandan Prateek <Ab...@citrix.com>.
>-----Original Message-----
>From: Jewel Nuruddin [mailto:jewel.nuruddin@yahoo.com]
>Sent: Thursday, June 07, 2012 4:09 PM
>To: cloudstack-users@incubator.apache.org; cloudstack-
>dev@incubator.apache.org
>Subject: Very basic query but no boday ask me about creating template from
>guest vm
>
>Hi,
>
>So what if user work on a guest and he did lots of work on his vm and he want
>to keep this backup, so you guys ask me to take a snaphot, so in Cloudstack
>this snaphot will not run? then how can user get his current stats in a new vm
>?
>well you said make a template from this snapshot ....right ? yes I can make
>template .....but this template is not start or I can not create new vm from this
>template......
What error do you get when you create a VM from the template ?
-abhi
RE: Very basic query but no boday ask me about creating template
from guest vm
Posted by Abhinandan Prateek <Ab...@citrix.com>.
>-----Original Message-----
>From: Jewel Nuruddin [mailto:jewel.nuruddin@yahoo.com]
>Sent: Thursday, June 07, 2012 4:09 PM
>To: cloudstack-users@incubator.apache.org; cloudstack-
>dev@incubator.apache.org
>Subject: Very basic query but no boday ask me about creating template from
>guest vm
>
>Hi,
>
>So what if user work on a guest and he did lots of work on his vm and he want
>to keep this backup, so you guys ask me to take a snaphot, so in Cloudstack
>this snaphot will not run? then how can user get his current stats in a new vm
>?
>well you said make a template from this snapshot ....right ? yes I can make
>template .....but this template is not start or I can not create new vm from this
>template......
What error do you get when you create a VM from the template ?
-abhi
Very basic query but no boday ask me about creating template from guest vm
Posted by Jewel Nuruddin <je...@yahoo.com>.
Hi,
So what if user work on a guest and he did lots of work on his vm and he want to keep this backup, so you guys ask me to take a snaphot, so in Cloudstack this snaphot will not run? then how can user get his current stats in a new vm ?
well you said make a template from this snapshot ....right ? yes I can make template .....but this template is not start or I can not create new vm from this template......
so what will be the way to take guest vm backup?
or please help me to take guest vm backup and use this backup in a later.
Thanks
Very basic query but no boday ask me about creating template from guest vm
Posted by Jewel Nuruddin <je...@yahoo.com>.
Hi,
So what if user work on a guest and he did lots of work on his vm and he want to keep this backup, so you guys ask me to take a snaphot, so in Cloudstack this snaphot will not run? then how can user get his current stats in a new vm ?
well you said make a template from this snapshot ....right ? yes I can make template .....but this template is not start or I can not create new vm from this template......
so what will be the way to take guest vm backup?
or please help me to take guest vm backup and use this backup in a later.
Thanks
Re: NetScaler Best Practices
Posted by Murali Reddy <Mu...@citrix.com>.
There isn't a best practice document. At this point I doubt if there could
be clear recommendation when a customer should move from virtual router to
NetScaler. Logically any customer that want high throughput or think
software load balancer in virtual router will not fit their needs could
consider a network offering that gives NetScaler as LB. As CloudStack
begins to have deeper integration (e.g. SSL termination) in upcoming
releases with external devices their value add becomes more evident.
There is no recommendation for the 'capacity' as well. This value could
depend on the throughput/pps a particular VPX/MPX/SDX device can handle or
licensed for. There is no inherent notion of tenant in the NetScaler
devices (at least with MPX, VPX) based on which you can reserve the
resources (CPU cores, throughput etc) or provide QoS guarantees. So
CloudStack currently uses simple hueristic of number of tenants a device
can be used as capacity of the device. This value is cloud admin
configured and editable so he can fine tune what capacity should be.
On 06/06/12 2:07 PM, "Paul Angus" <pa...@shapeblue.com> wrote:
>Hi,
>
>I'm looking for best practices with respect to:
>
>a. when a client should be considering using a NetScaler for load
>balancing rather than the virtual router
>b. the capacity setting for any given NetScaler model.
>
>I understand that it depends on the type of load that the virtual router
>or NetScaler would experience, but we need to have some guidelines as a
>starting point.
>
>
>Paul Angus
>Consultant
>ShapeBlue
>
>
>paul.angus@shapeblue.com
>www.shapeblue.com
>
>ShapeBlue provides a range of strategic and technical consulting and
>implementation services to help IT Service Providers and Enterprises to
>build a true IaaS compute cloud. ShapeBlue¹s expertise, combined with
>CloudStack technology, allows IT Service Providers and Enterprises to
>deliver true, utility based, IaaS to the customer or end-user.
>
>________________________________
>
>This email and any attachments to it may be confidential and are intended
>solely for the use of the individual to whom it is addressed. Any views
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Re: NetScaler Best Practices
Posted by Murali Reddy <Mu...@citrix.com>.
There isn't a best practice document. At this point I doubt if there could
be clear recommendation when a customer should move from virtual router to
NetScaler. Logically any customer that want high throughput or think
software load balancer in virtual router will not fit their needs could
consider a network offering that gives NetScaler as LB. As CloudStack
begins to have deeper integration (e.g. SSL termination) in upcoming
releases with external devices their value add becomes more evident.
There is no recommendation for the 'capacity' as well. This value could
depend on the throughput/pps a particular VPX/MPX/SDX device can handle or
licensed for. There is no inherent notion of tenant in the NetScaler
devices (at least with MPX, VPX) based on which you can reserve the
resources (CPU cores, throughput etc) or provide QoS guarantees. So
CloudStack currently uses simple hueristic of number of tenants a device
can be used as capacity of the device. This value is cloud admin
configured and editable so he can fine tune what capacity should be.
On 06/06/12 2:07 PM, "Paul Angus" <pa...@shapeblue.com> wrote:
>Hi,
>
>I'm looking for best practices with respect to:
>
>a. when a client should be considering using a NetScaler for load
>balancing rather than the virtual router
>b. the capacity setting for any given NetScaler model.
>
>I understand that it depends on the type of load that the virtual router
>or NetScaler would experience, but we need to have some guidelines as a
>starting point.
>
>
>Paul Angus
>Consultant
>ShapeBlue
>
>
>paul.angus@shapeblue.com
>www.shapeblue.com
>
>ShapeBlue provides a range of strategic and technical consulting and
>implementation services to help IT Service Providers and Enterprises to
>build a true IaaS compute cloud. ShapeBlue¹s expertise, combined with
>CloudStack technology, allows IT Service Providers and Enterprises to
>deliver true, utility based, IaaS to the customer or end-user.
>
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