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foobat
Nov 25, 2008


question to the emc guys

I inherited a cx3, mirrored with 52tb of storage about a year ago and setup by the guy before me. We've got a setup where each of the luns is basically exported as an nfs share on a rhel5 box. So

emcpowera -> home01
emcpowerb -> home02
emcpower? -> home09

This of course is becomes a pain for adding users, or having to shuffle them around if a lun runs out of space. I'd like to just use the volume manager to make them "homes" or something appropriate but I have no idea whether this is best practice or just retarted.

Ofc, i'd like to setup some sort of failover for our nfs service but that's another story.

Cheers

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foobat
Nov 25, 2008


paperchaseguy posted:

You want one home directory instead of three? Sure, that's possible with a logical volume manager. Or you could merge the three LUNs into one large metavolume. The problem is then you have a 52TB filesystem. What happens when you reboot and have to do a fsck? Or a crash of the host where you certainly will have to clean it? I haven't seen a lot of large Linux / ext3 filesystems so I can't say for sure, but I would think that the fscks would take a large amount of time. What happens now when you reboot, how large is your biggest filesystem? The largest filesystem in my memory was a 10TB NTFS that was a bear after a crash. They eventually cut it down to ten 1TB filesystems.

sorry didn't make it clear, i have about 20 luns, each is about a terrabyte, and i'm just wondering what other guys do.

I'm getting to a point where a group of users have generated more than a couple terrabytes of actual data and i'd rather not have to tell them, "well you now how 3 or 4 groups spaces for your data" as that is a good way to get data replication and for them to constantly bitch and moan.

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