On 06/07/16 04:29 PM, Wanderlei Huttel wrote:
Hello
I don't know how big is your storage, but you have configured
something like 100 disks of 4TB (= 4000gb)
You define capacity of your pool configuring (Maximum Volume Bytes x
Maximum Volumes)
Is interesting to set smaller volumes because if you have some volume
error you will loose less data.
If you consider one hard disk of 1TB with a Full Backup daily of 100GB
and you want 30 days retention, you will not reach it, because 30 x
100GB = 3.000gb or 3TB, so you only will reach 10 days retention (10 *
100GB) = 1TB
That's if each backup is a full backup. Generally you don't do one that
often. A full weekly backup with daily incremental backups would require
far less storage.
You're right about keeping volumes small to reduce the loss due to a
corrupted volume. When you're dealing with terabytes of data, it's hard
to guarantee perfect reliability.
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