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тАО02-05-2010 08:02 AM
тАО02-05-2010 08:02 AM
Volume mounted on multiple servers
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тАО02-05-2010 08:58 AM
тАО02-05-2010 08:58 AM
Re: Volume mounted on multiple servers
OS matters here.
NFS 4, which is only available with 11.31 HP-UX can resolve this problem. Also NFS patches can as well.
I would patch the NFS subsystem first. HP calls this patch set ONC.
Can you help out with more information so my answer can be more meaningful? OS. Type of web server, stuff like that.
SEP
Owner of ISN Corporation
http://isnamerica.com
http://hpuxconsulting.com
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тАО02-05-2010 09:53 AM
тАО02-05-2010 09:53 AM
Re: Volume mounted on multiple servers
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тАО02-05-2010 10:05 AM
тАО02-05-2010 10:05 AM
Re: Volume mounted on multiple servers
Can you quantify that? What does "poor" look like? Is it the MSA performance that is poor, or NFS performance?
>> I have done all the recomended NFS tuning
So you've read these White Papers and followed the guidelines in them?:
http://docs.hp.com/en/10388/DesigningaHighPerformanceNFSServer.pdf
http://docs.hp.com/en/14765/v2963139.pdf
>> My thought is to move the data to a new mount point on an iSCSI attached EMC array and mount it read only on the 2 web servers, any thoughts or suggestions.
Yes:
1. If the iSCSI LUN is going to be presented over the same network as the NFS mounts, and the network is already the bottleneck (I'm not saying it is but...) you may get nowhere anyway
2. HP-UX only supports software ISCSI initiators, so iSCSI performance is never going to be too hot
3. If your plan is to present the same LUN to the rx6600 and to the 2 rx3600 hosts and then create volume manager volume and filesystem on that LUN and mount it read-write on the rx6600 and just read-only on the rx3600s then although it can be made to work, it isn't supported without a cluster filesystem (and I'm pretty sure the cluster filesystem available for HP-UX doesn't support SCSI)
HTH
Duncan
I am an HPE Employee
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тАО02-05-2010 10:07 AM
тАО02-05-2010 10:07 AM
Re: Volume mounted on multiple servers
(and I'm pretty sure the cluster filesystem available for HP-UX doesn't support iSCSI)
I am an HPE Employee