I am finally buying the various parts for the build and I am looking to add 4 more 4TB drives to the setup, with a total of 12 to fill the chassis. The question is, what would be the best configuration for this?
Option 1
Intel 750 400GB ZIL
2 x IBM 5015 HBA IT mode
12 x 4TB raidz2
Option 2
Intel 750 400GB ZIL
2 x IBM 5015 HBA IT mode
6 x 4TB raidz2
6 x 4TB raidz2
Option 2 would give less useable space but more redundancy and easier for future upgrade as I can do 1 pool at a time while copying stuff over to the one that will remain untouched. However, will a single ZIL device work for 2 pools in the system?
Option 1 would net the most space, but I am unsure about the reliability of 12 drives in raidz2, not to mention, difficulties with upgrading to larger capacity drives.
Option 1
Intel 750 400GB ZIL
2 x IBM 5015 HBA IT mode
12 x 4TB raidz2
Option 2
Intel 750 400GB ZIL
2 x IBM 5015 HBA IT mode
6 x 4TB raidz2
6 x 4TB raidz2
Option 2 would give less useable space but more redundancy and easier for future upgrade as I can do 1 pool at a time while copying stuff over to the one that will remain untouched. However, will a single ZIL device work for 2 pools in the system?
Option 1 would net the most space, but I am unsure about the reliability of 12 drives in raidz2, not to mention, difficulties with upgrading to larger capacity drives.