Hey,
So we have an older SAN with 15 450Gb 15k SAS drives. It's going to be for our ESX cluster. I was trying to figure out the best RAID setup for these drives. I'm trying to avoid the 2 drive in RAID 5 failure. My plan is to do 2 7 disk RAID 5 with 1 hot spare for both arrays. SO that would be 2.7 Tb for a total of 5.4Tb, a rebuild might take a few hours. The other option is RAID6 to do 2.25Tb for a total of 4.5Tb. I also thought of RAID10 using all the drives but my boss doesn't like losing that much storage down to 3.1Tb.
If I did the whole SAN for RAID6 would give 5.85Tb but I'm thinking that might be too many machines on one LUN plus a really long rebuild time.
Which would be the best way to deal with this space, I haven't setup a SAN before and want to make sure it's done right the first time.
Thanks!
So we have an older SAN with 15 450Gb 15k SAS drives. It's going to be for our ESX cluster. I was trying to figure out the best RAID setup for these drives. I'm trying to avoid the 2 drive in RAID 5 failure. My plan is to do 2 7 disk RAID 5 with 1 hot spare for both arrays. SO that would be 2.7 Tb for a total of 5.4Tb, a rebuild might take a few hours. The other option is RAID6 to do 2.25Tb for a total of 4.5Tb. I also thought of RAID10 using all the drives but my boss doesn't like losing that much storage down to 3.1Tb.
If I did the whole SAN for RAID6 would give 5.85Tb but I'm thinking that might be too many machines on one LUN plus a really long rebuild time.
Which would be the best way to deal with this space, I haven't setup a SAN before and want to make sure it's done right the first time.
Thanks!