Toasters,
My DBA just came to me and complained that a Ora RAC 10g build took 18 hours when using a Filer NFS mount. Seems I've heard of this issue before but forget the fix. Has someone seen this before ?
TIA
-Rob
Eric Gross, our head of database automation, posted something about that a while back:
http://blog.gridapp.com/2007/07/25/nfs-mount-options/
Hope this helps, Matt
-- Matthew Zito Chief Scientist GridApp Systems P: 646-452-4090 mzito@gridapp.com http://www.gridapp.com
________________________________
From: owner-toasters@mathworks.com on behalf of Robert K. Borowicz Sent: Wed 3/19/2008 12:53 PM To: toasters@mathworks.com Subject: RAC install on NetApp
Toasters,
My DBA just came to me and complained that a Ora RAC 10g build took 18 hours when using a Filer NFS mount. Seems I've heard of this issue before but forget the fix. Has someone seen this before ?
TIA
-Rob
Hi all,
We are looking to implement jumbo frames on our filers in order to help the throughput of ISCSI. We have a number of Windows boxes using the MS software ISCSI initiator, and we also have a number of VMware ESX 3.5 servers also using the VMware ISCSI initiator.
And hence have a few questions about jumbo frames:
Will this help with ISCSI performance ?
What about CIFS clients, will we need to change on those machines ?
Does anybody else have any words of wisdom that would help ?
Any yes I know should be using NFS but I don't have a license for it yet L
Thanks
Matt
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Hi Matt,
On Thu, Mar 20, 2008 at 5:41 PM, Davies,Matt MDAVIES@generalatlantic.com wrote:
Hi all,
We are looking to implement jumbo frames on our filers in order to help the throughput of ISCSI. We have a number of Windows boxes using the MS software ISCSI initiator, and we also have a number of VMware ESX 3.5 servers also using the VMware ISCSI initiator.
And hence have a few questions about jumbo frames:
Will this help with ISCSI performance ?
Usually, yes. It will help iSCSI performance if you have I/O which is over 2k in size. Since Windows by default uses a 4k block size, this is usually the case.
What about CIFS clients, will we need to change on those machines ?
If at all possible, see if you van seperate your iSCSI traffic from CIFS traffic by using different interfaces.
Does anybody else have any words of wisdom that would help ?
Jumbo needs to be supported end-to-end, which means that all equipment in the path from the NetApp up to the NIC in your server need to support this. On el-cheapo servers and switches, this is not always the case.
Any yes I know should be using NFS but I don't have a license for it yet L
This may be argued for VMWare, but obviously not for the Windows boxes :)
Hi,
Is anyone using widelinks on GX?
We're having real issues getting the functionality working despite it being a breeze on 7G, even once we realised the syntax in the user guide was incorrect (which is acknowledged in the release notes for 10.0.3).
Netapp are looking at this for us, but I thought I'd try this avenue too!
thanks, Darren
I am using widelinks on our GX system (10.2.PX) and it's functioning just fine on our end. Any specifcs about the problem you are seeing? Maybe I can help.
Thanks,
On 3/22/08, Darren Sykes Darren.Sykes@csr.com wrote:
Hi,
Is anyone using widelinks on GX?
We're having real issues getting the functionality working despite it being a breeze on 7G, even once we realised the syntax in the user guide was incorrect (which is acknowledged in the release notes for 10.0.3).
Netapp are looking at this for us, but I thought I'd try this avenue too!
thanks, Darren
Thank you everyone who responded it has give me a great deal of information.
It looks like I have a busy few weeks ahead to make the changes needed.
Cheers
Matt
From: owner-toasters@mathworks.com [mailto:owner-toasters@mathworks.com] On Behalf Of Davies,Matt Sent: 20 March 2008 16:42 To: toasters@mathworks.com Subject: Jumbo Frames
Hi all,
We are looking to implement jumbo frames on our filers in order to help the throughput of ISCSI. We have a number of Windows boxes using the MS software ISCSI initiator, and we also have a number of VMware ESX 3.5 servers also using the VMware ISCSI initiator.
And hence have a few questions about jumbo frames:
Will this help with ISCSI performance ?
What about CIFS clients, will we need to change on those machines ?
Does anybody else have any words of wisdom that would help ?
Any yes I know should be using NFS but I don't have a license for it yet L
Thanks
Matt
____________________________________________________________
This e-mail (including all attachments) is confidential and may be privileged. It is for the exclusive use of the addressee only. If you are not the addressee, you are hereby notified that any dissemination of this communication is strictly prohibited. If you have received this communication in error, please erase all copies of the message and its attachments and notify us immediately at help@generalatlantic.com. Thank You.
-
Darren Sykes -
Davies,Matt -
grace rante -
Matthew Zito -
Nils Vogels -
Robert K. Borowicz