The server is going to be used to store log data for 60 days. Basically the goal is to keep logs from numerous servers in once place. The servers that use the largest amount of data will each have their own filesystem on their own volume groups.

The systems which produce a smaller volume of records will be on separate smaller volumes. The Servers are HP DL360 G7's, and the san is an HP P2000 G3, using fibre channel.

On the SAN we have a total of 12 disks (to start), split into two 6-disk RAID 5's. Adding additional disk shelves, we will continue doing the same thing. We're using 7200 RPM 2TB midline drives since this is just going to be used for data warehousing. We have these RAID 5's carved into single 1TB volumes. These will each get added to the storage server. We'll turn them into LVM physical volumes with PVcreate. Then, we'll create separate the 6 separate volume groups out of them.

Right now we're looking at having 6 separate filesystems running on 6 separate Volume Groups. The largest could be over 25-30TB. The smallest will probably be around 1-2 TB.

We've based this on load testing, but we don't have the ability to fully load test what the system is meant to handle outside of production so certain things (DB archive logs) we can't really get an idea about. Atm we're just scaling up the numbers we're seeing but that's fuzzy math.

---------- Post updated at 08:53 PM ---------- Previous update was at 08:35 PM ----------

This is awesome advice actually. We were running into issues when testing putting a LVM partition on the lun. It wasn't showing up, and partprobe wasn't working. Only thing that worked was a reboot, and that won't be acceptable in production. Just tried using a whole lun instead of a partition and it worked like gangbusters.