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10-16-2007 02:16 AM
10-16-2007 02:16 AM
Not sure if anyone has experience of using NAS storage with HP servers. I have a customer who wants 9 seperate filesystems all on different paths. I have been told we are going to use the NAS to present this storage. My experience of NFS tells me having 9 seperate NFS mounts may not be a wise decision. Does anyone have any opinion on this and is anyone doing anything similar.
Thanks
Solved! Go to Solution.
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10-16-2007 02:25 AM
10-16-2007 02:25 AM
SolutionBut yes, running applicaitons over NFS even on 1000MB LAN will suffer performance issues.
If this is a low IO application then performance may not be an issue but beware of reliability issues as well. Network problems or NAS problems on NFS mounts will typically show as hung applications and rebooting is your only way out.
NAS solutions are great for small or Intel based environments. Not a speedy reliable solution in the UNIX world.
Best of luck.
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10-16-2007 03:05 AM
10-16-2007 03:05 AM
Re: hpux and NAS storage
I don't know which point makes you headache.
We're using a NAS filer from NetApp with no problems.
I've 14 separate nfs mounts from my server, the clients have even some more.
Volkmar
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10-16-2007 01:03 PM
10-16-2007 01:03 PM
Re: hpux and NAS storage
Regards,
Dave
I work at HPE
HPE Support Center offers support for your HPE services and products when and how you need it. Get started with HPE Support Center today.
[Any personal opinions expressed are mine, and not official statements on behalf of Hewlett Packard Enterprise]

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10-16-2007 01:31 PM
10-16-2007 01:31 PM
Re: hpux and NAS storage
The other issue is that NAS storage devices have the same issues with firmware and diagnostics as SAN disk arrays. If you connect to a really old array and a disk goes bad, it may be very invasive to the OS as well as difficult to identify the problems.
NFS performance will be pitiful with 100Mbit LANs, probably acceptable with a Gbit link but you have to look at all the options for parallel access for NAS. If performance is important, look at features like load balancing with multiple LAN connections. And be sure that any parallel path, load balancing software is compatible with your OS. The link count is not an issue with clean networks. Most problems with NFS always point back to an unstable server, never a good idea for any production server.
Bill Hassell, sysadmin