Additional comments below...
Christine Tran wrote:
Hi,
I guess we are acquainted with the ZFS Wikipedia?
http://en.wikipedia.org/wiki/ZFS
Customers refer to it, I wonder where the Wiki gets its numbers. For
example there's a Sun marketing slide that says "unlimited snapshots"
contradicted by the the first bullet:
2^48 — Number of snapshots in any file system (2 × 10^14)
Is this correct?
I want to make a mirrored pool but after creation detach one side of the
mirror and run like this indefinitely. Can I do this? I have yet to
try it out, just wondering if someone knows the answer right off the bat.
Why can't I have a vdev of type concat? A customer says he has hardware
RAID-0 and does not want to stripe over stripe. Are there known
problems with stripes on stripes, unintentional hotspots maybe?
Friends don't let friends use RAID-0. Everyone I've known who insists on
doing so has a sad story to tell.
ZFS does not do concat, it does dynamic striping, which has the benefits of
RAID-0 with the ability to easily expand like concat.
Data checksum is used only to detect bad data, and not to recover data,
correct? Just verifying.
Yes, checksum is part of the detection mechanism. Correction is done by
several other mechanisms, primarily using redundancy or parity reconstruction.
-- richard
Can I use ZFS specifically with PowerPath? I remember George W.
mentioning that PowerPath tries to do something clever and it interfered
with ZFS but I can't remember the specifics.
Will I be able to I tune the DMU "flush" rate, now set at 5 seconds?
CT
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