The way I see it is that eventhough ZFS may be a wonderful filesystem,
it is not the best solution for every possible (odd) setup. I.e
USB-sticks has proven a bad idea with zfs mirrors, ergo - dont do
it(tm).

ZFS on iSCSI *is* flaky and a host-reboot without telling the target
will most likely get the target to panic and/or crash in a couple of
fun ways. Yes I have tested, way to many times, and yes I know this -
therefore I do not reboot my hosts if not absolutely necessary and if
I have to, I usually tell my target(s) to unmount/export/calm down
before I do it. The same is true for FC-connected vdevs, and thus - I
dont "reboot" my SAN nor my FC connected cabinets without telling the
targets.

I know that sometimes you cant avoid theese situations but then I've
learned how to "fix" it when it happends, and there's no bs, just fix
it.

I've been equally disappointed and encouraged by ZFS itself, and i've
lost data, i've recovered data (thanks to Victor Latushkin) and im ok
with it. Why?

Know thy filesystem!

I know what I can do, what I can trust and what I cant, so I do and I
dont accordingly.

Flaming people on ./ is *not* the way to silence those who lost data
due to corruptions, telling them that "Ok, that's sad, but perhaps ZFS
is NOT for you if you want to run USB-connected iscsi-initiator over
zfs raidz with mushrooms and sauce." would probably be a better idea.
Nor is blaming *all* errors/corruptiosn that actually occur on bad
hardware (ECC discussion), stupid programs (mostly GNU-hate) or stupid
administrators who didnt get the budget to run backups on 100TB+ nodes
etc etc.

Now I'll probably get flamed by those who get religious over theese
kind of discussions, but that's ok, I dont get hurt by flames on
internet... Arguing on the internet... special olympics yada yada..
;-)

Best Regards,
Timh

2009/6/18 Ian Collins <masuma....@quicksilver.net.nz>:
> On Thu 18/06/09 09:42 , Miles Nordin car...@ivy.net sent:
>
>> Access to the bug database is controlled.
>
> No, the bug databse is open.
>
> Ian.
>
> _______________________________________________
> zfs-discuss mailing list
> zfs-discuss@opensolaris.org
> http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
>



-- 
Timh Bergström
System Operations Manager
Diino AB - www.diino.com
:wq
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