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Message
Got 4 drives: RAID 5 vs RAID 1+0
Posted on 6/10/15 at 9:29 am
Posted on 6/10/15 at 9:29 am
Go.
Basic file server. I've always done RAID 5 w/ hot spare or RAID 6. What is the advantages/disadvantages of 1+0?
I know, Google motherf*cker. Just looking for personal experiences.
Basic file server. I've always done RAID 5 w/ hot spare or RAID 6. What is the advantages/disadvantages of 1+0?
I know, Google motherf*cker. Just looking for personal experiences.
4
Posted on 6/10/15 at 11:13 am to Casty McBoozer
Raid 10 is much faster but you literally lose half of your storage capacity.
Posted on 6/10/15 at 12:35 pm to SG_Geaux
quote:
Raid 10 is much faster but you literally lose half of your storage capacity.
The above is true. Raid 10 is typically reserved for things like database servers. Raid 5 is well balanced considering redundancy and performance.
Posted on 6/10/15 at 12:56 pm to goldengorilla
Yeah I would never go Raid10 for a file server unless there was some really special reasons for doing so.
Posted on 6/10/15 at 8:53 pm to Casty McBoozer
If you only have 4 drives, raid5. You're "losing" a lot of storage by going raid10. Critical databases that need faster read speeds for big companies need raid10.
Posted on 6/10/15 at 9:46 pm to Casty McBoozer
Raid 5 is a sucker bet. Mirror them. Drives are cheap.
Drive failures in a Raid 5 are NOT independent events. Too many people too many times have seen a second failure during a parity rebuild.
Whatever you do, back up anything on the array that you care about. Back it up religiously, and practice restoring once in a while. Raids will fail. They really will.
Drive failures in a Raid 5 are NOT independent events. Too many people too many times have seen a second failure during a parity rebuild.
Whatever you do, back up anything on the array that you care about. Back it up religiously, and practice restoring once in a while. Raids will fail. They really will.
Posted on 6/10/15 at 10:18 pm to tokenBoiler
Accept the loss in array size and go RAID 1+0, especially if you're using large SATA drives. There's all sorts of reported disasters of secondary drive failures during a RAID5 rebuild with large drives.
Posted on 6/10/15 at 10:55 pm to jdd48
Went 1+0. It seems more responsive than 5...except my RAID 5 of SSD's which I recently had to rebuild from backup because after a drive failure there was massive data corruption.
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