Hi,
We are to archive huge amount, say, 100TB, of
data/images and keep a replicate at a remote site. I
thought ZFS will be a good choice. Can someone comment
and advice if it's practical:
plan A. To mirror on iSCSI devices:
keep one server with a set of zfs file systems
with 2 (sub)mirrors each, one of the mirrors use
devices physically on remote site accessed as
iSCSI LUNs.
How does ZFS handle remote replication?
If the Internet link is down for hours or days,
can the file systems still be written? Will
the submirrors be resync'ed efficiently?
Plan B. To use ZFS incremental snapshot backup/restore on a
pair or servers to sync 2 copies of the same data over
the Internet, once say, every 10 or 60 min.
Will I still get decent performance when I have 50 or 100TB
(say using V490/V890 on some SATA drives on 3511 arrays)?
More options? Much Thanks.
Max
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