Joe Toppi wrote:
I have machine that had 2x 1TB drives in it. They were in the same zpool and
that entire zpool is set to "copies=2". From what I understand this will
store all my data twice, and if the SPA is doing its job right it will store
the copies on different disks and store the checksum for any given block on
the other disk.
I filled this with data. So I added a 1.5 TB drive to the pool. Where will my
ditto blocks and checksums go? Will it migrate data from the other drives
automatically? Will it migrate data if I scrub or re-silver? will it never
migrate data and just store all the new blocks and checksums on the new
drive?
I am interested in making sure that a single drive failure will not cause
loss of data, what should I do if anything?
Use mirrors, raidz1, or raidz2. copies=2 will _not_ help you in case of drive
failure, as the pool will refuse to import.
--
Carson
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