RAID Backup questions
<div class="IPBDescription">Theorycrafting my server setup!</div>I'm currently in the process of acquiring parts for my ubuntu server to backup my hard-drive data.
I'm expecting, by the time I grab all the stuff off dad's server as well, upwards of 750GB, I.e I'll need 1Tb of data to store it.
I want, initially: Data mirrored on backup HDD[s] either continually or nightly, as well as offline monthly backups (i.e hotplug extra hdds, copy over, offline immediately).
My setup so far is:
Ubuntu Desktop 64bit 8.04
500w generic psu (needs to be replaced with a modern psu since this bundled one only has one SATA connector.. jesus)
AMD AM2 5200+
Gigabye MA78GM-S2H
2GB ram
60gb IDE 7200rpm hdd (not great but i just want a small one for O/S)
The HDDs I have available currently are:
3x 500gb SATA
What are my options? I've just spent a bunch of cash on this computer and other necessary things (shoes etc) so while 1Tb hdds are only $AUD 180 at the moment, I don't want to drop $360 and have 3 perfectly good 500gb hdds sitting around.
Considering the above, is it possible to:
RAID-0 two of the 500gb disks to create 1x 1Tb disk that I can store all the data on, then buy a 1Tb drive and copy everything over, use that as the primary drive and then RAID-1 (mirror) the two volumes against each other (although there would be 3 hdds in actuality)? Then use the remaining 500gb drive for... I don't know. If this works could I get 2x 750gb drives instead of 1Tb and use 1.5Tb vs 1.5Tb?
I'm unhopeful that I can actually do two levels of RAID on the drives, but I figured I'd ask.
Otherwise I'll have to do something like..
RAID-0 three 500gb drives, RAID-0 2x 750gb drives, then just use a cron job to copy over and changed/new files every morning at 3am and leave it til later, when I have a job, to get new HDDs and shift the 3x500gb as offline backups.
I don't know... I don't want to buy new drives and not find a use for the 500gb drives (obviously I'd wait a bit after getting the server offline before buying new drives to serve as online backup, anyway).
What I might do, in the meantime, is just RAID all the 500gb drives and copy everythign over to see how much data I have. If it's far enough below 1Tb that I won't pass it in the forseeable future, I might buy two 1Tb 32mb drives and use two 500gb drives as offline backups, then keep the 3rd 500gb drive in an external enclosure for my laptop.
I don't know, decisions, decisions! On top of this I need to buy a $200 TV Tuner as well, and I'm moving out soon and oh gosh :S
I'm expecting, by the time I grab all the stuff off dad's server as well, upwards of 750GB, I.e I'll need 1Tb of data to store it.
I want, initially: Data mirrored on backup HDD[s] either continually or nightly, as well as offline monthly backups (i.e hotplug extra hdds, copy over, offline immediately).
My setup so far is:
Ubuntu Desktop 64bit 8.04
500w generic psu (needs to be replaced with a modern psu since this bundled one only has one SATA connector.. jesus)
AMD AM2 5200+
Gigabye MA78GM-S2H
2GB ram
60gb IDE 7200rpm hdd (not great but i just want a small one for O/S)
The HDDs I have available currently are:
3x 500gb SATA
What are my options? I've just spent a bunch of cash on this computer and other necessary things (shoes etc) so while 1Tb hdds are only $AUD 180 at the moment, I don't want to drop $360 and have 3 perfectly good 500gb hdds sitting around.
Considering the above, is it possible to:
RAID-0 two of the 500gb disks to create 1x 1Tb disk that I can store all the data on, then buy a 1Tb drive and copy everything over, use that as the primary drive and then RAID-1 (mirror) the two volumes against each other (although there would be 3 hdds in actuality)? Then use the remaining 500gb drive for... I don't know. If this works could I get 2x 750gb drives instead of 1Tb and use 1.5Tb vs 1.5Tb?
I'm unhopeful that I can actually do two levels of RAID on the drives, but I figured I'd ask.
Otherwise I'll have to do something like..
RAID-0 three 500gb drives, RAID-0 2x 750gb drives, then just use a cron job to copy over and changed/new files every morning at 3am and leave it til later, when I have a job, to get new HDDs and shift the 3x500gb as offline backups.
I don't know... I don't want to buy new drives and not find a use for the 500gb drives (obviously I'd wait a bit after getting the server offline before buying new drives to serve as online backup, anyway).
What I might do, in the meantime, is just RAID all the 500gb drives and copy everythign over to see how much data I have. If it's far enough below 1Tb that I won't pass it in the forseeable future, I might buy two 1Tb 32mb drives and use two 500gb drives as offline backups, then keep the 3rd 500gb drive in an external enclosure for my laptop.
I don't know, decisions, decisions! On top of this I need to buy a $200 TV Tuner as well, and I'm moving out soon and oh gosh :S
Comments
--Scythe--