I have to rebuild my remote Backup Server (A place for my servers to backup to hard dirves). I currently have a LINUX system with a RAID 5 array of 300GB SAS drives (Total 1.5TB) which has to be increased to 4TB or larger (sorta depends on the cost) We are virtualizing 22 of my servers which currently use on board tapes for Master Backups and then do differentials each night to my Backup Server over our WAN at night. Because this server will now be holding Master Backups I need to grow the space. I don't have the money nor budget to get any dedupe system or some other appliance.
I started looking for drives and hit the smorgasbord of Green/Red 32mb/16mb cache and the prices are all over the place. I can get a 1TB drive for $133 (approx) but the 500GB drive is $270 with a smaller cache. Same manufacturer and distributor. My RAID system has 8 slots which I want to use. There will be two arrays in the system. RAID1 (Mirrored for the oS) and the rest of the slots for RAID 5. Currently it is all one big array and also uses LVM which I am not going to use when I rebuild this thing. So I am looking for some insight on what performance specs I should be looking for in such a project. I must confess as I type this I probably will also look at a NAS unit that would be comparable size and cost. My systems use a Backup program from Microlite (BackupEdge) which works just fine for what we do and hasn't failed me yet. (looking for some real wood to knock on). TIA -- John J. Boris, Sr.
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