2013-06-19 01:55 AM
we plan to buy a FAS2220 in HA Version, but we dont know how many Disk in the System are Data Disks.
We plan to buy the Bundle with 12 x 900 GB Disks an set it up as a Active/passive configuration. The Documentation sais: In this configuration, the passive node has only a root volume.
How many Disk does he need for "only a root volume".?
And how many Data Disk are then available for the active node?
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2013-06-19 05:33 AM
We use this hardware for our remote offices and this is the configuration that we use to maximize space.
Node 1 - One aggregate of 9 disks (RAID-DP) with one spare. This will give you approximately 5TB of usable space on the aggregate (7 data disks, 2 parity disks). If space it really a concern you _could_ go RAID-4 here but I wouldn't recommend it for production data.
Node 2 - One aggregate of 2 disks (RAID-4) with no spares. You will get alerts about there being no spares available but you can stop those by setting 'options raid.min.spare_count' to '0'