Slow days?

Or is everyone else busy too?

Haven’t had time to scratch my arse lately.  Though I did find the time to pair down my MP3 library to about 70Gig.  Amazing the stuff you accumulate when you have the room for it.  Stuff that you absolutely would never listen to in a thousand years.

Getting over the emotional blockage and hitting the delete key is a hard thing to do, harder still is controlling yourself once you start deleting and realize how easy it is. 😉

I’ve been playing with VMWare mounted over NFS lately.  The best part I’ve found is that it makes the virutal machines very portable.  I have a few VMWare servers seeing a single NFS volume as server area, and once I get the system established on it, I can import the VM to any of the VMWare servers as I need to.

Pretty cool.  Pity that they still need to be backed up.  (You still can’t back-up the underlying NFS filesystem and expect to get a restartable copy of your server, unless you are using snap technology)

 

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    • on June 3, 2007 at 9:33 pm
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    Sangod,

    What kind of performance are you getting over NFS? Are you able to send me some info? Very interested in building a cheap ESX/VI3 lab using NFS or iSCSI.

    regards,
    kaneda

    • on June 4, 2007 at 2:46 pm
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    Until he answers, I can provide a bit of info as I’ve got a rather large test environment that at one point utilized NFS. One word….UGLY. It’s not fast by any stretch of the imagination, though I imagine that can be improved upon by putting more beef behind the nfs server, perhaps bundling the links, etc.

  1. I’m running 4x1gbit etherchannel, on the Celerra, and gigabit on the VMWare box, so yes, I’m seeing much better performance that most would.

    Actually the funny part is I’m not even seeing the gigabit link pushed to anything close to it’s max, and that’s, right now, with 8 VM’s on the box, all but two of which are running solely from NFS. 🙂 (one is blended, with the root on the internal disks, and the data partition on the NFS, and one is internal disks only.)

    • on June 13, 2007 at 3:11 pm
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    these virtual machines has large File IO needs, most likely network thruput is not the bottleneck, the OS + the resource manager is, don’t you think? I don’t know what are the practices in scaling File IO … maybe I’m way off the mark on this anyway.

    about backing up vmware virtual machines, often time you need to back up the virtual disk that is 2GB, 4GB, 8GB. I’m no storage guy, what’s the practice of backing up large files? … without v-machine down? hot-backup, any ways?

  2. Hey Steve. Check with the Symantec/Veritas site, they have a plugin for NetBackup 6 that will backup a Virtual Machine by creating a snapshot, backing up the disk file, then releasing the snap.

    The problem with doing it that way of course is that you don’t get the ability to restore a single file. Just like you can use TSIM or TEIM to back SQL or Exchange up, but you are stuck restoring the entire database and not just an individual email.

    Jg

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