Quick ZFS mirroring question for non-mirrored pool
Kaya Saman
SamanKaya at netscape.net
Sun May 16 12:44:25 UTC 2010
Thanks for the response Jeremy! Sorry didn't answer right away but as I
said in my previous post it was 5am and I ended up crashing out.....
[...]
> I would highly recommend doing exactly what you've described here. In
> fact, it's what I do on two of my home systems (Intel X25-V 40GB drive
> used for root, /usr, /var, and /tmp, and ZFS for everything else
> including /home), and what I plan on our servers one Intel 80GB SSDs
> drop to a more reasonable price.
>
Cool :-) It's set then this is how I'm gona go.
> There are many people here who have gone through the pain (IMHO) of
> getting ZFS to boot on FreeBSD, and it still isn't as simple nor
> reliable (in all configurations) as it is on OpenSolaris/Solaris 10.
> There seem to be a large number of "gotchas" which come up when the
> administrator least expects/wants it (usually during a failure
> scenario).
>
Thanks for the warning, I figured that as ZFS doesn't seem as well
developed on BSD then Sun Microsystems version (now Sun Oracle just to
be up to date!)
> Also, please reconsider going with Western Digital RE4 2TB drives.
> These drives are all "GP" (Green Power) drives, which you do not want.
> There have been numerous reports on the FreeBSD mailing lists about
> problems with these drives (repeated head offloading/parking causing
> problems in RAID arrays), and yes, it applies to Enterprise class drive
> as well; WD has indirectly confirmed the problem in one user's case by
> sending him a "fixed" firmware. I can point you to threads if you want
> to read them.
>
> I would recommend you choose WD Caviar Black drives instead (cheaper,
> benefit from TLER when enabled, and throughput is much higher than GP
> drives), or another vendor of your choice. Don't ask "Who do you
> recommend?" because everyone has different experiences/preferences;
> there's no vendor who's 99% reliable right now. :-)
>
>
I checked the Caviar Black out and yes it's cheaper which means better
for me if it causes less problems and increases reliability; sorry to
keep going on about the reliability issue but I just want the drives to
ask a long time as I've had so many drive failures over the past few
years it gets irritating not to mention expensive replacing drives every
few months or years.
I found another alternative too which is a Seagate Barracuda 2TB 5900RPM
Low Power drive...?? Don't know what you'd make of it though as you
explicitly claimed not to use low-power drives?
Quote: "
Don't ask "Who do you
recommend?" because everyone has different experiences/preferences;
there's no vendor who's 99% reliable right now. :-)
"
Isn't this like asking people what their favorite color is?? There are
something like 2^23 potentials lol if talking about a 24bit color matrix!
Many thanks for all the advice :-D It really is such a pleasure on
mailing lists and forums to be helped by such nice and kind people (this
includes everyone that has participated in my post!!)
P.s. this is deviating a bit from the subject but just caught the
UNIX Systems Administrator
part in your signature!
It's so much where I wana be you have no idea so I'm really envious
right now :-)
The incredibly funny part however is after searching far and wide I
ended up working for a firm developing MS software for companies as a
Systems Engineer.... the only catch is that they're having to teach me
how to use Windows as I've never actually used it before since XP days
about 8 years ago now and since they're using MS Server 2003/8 and Win 7
I am completely lost as I don't really point click too much for stuff
any more.
Even though my whole home setup is UNIX/Linux based down the switches,
wireless AP's and routers which are all Cisco, 3Com or Foundary.
.....that reminds me I gota get rid of the 72" Sun rack sitting in my
parents living room LOL!
Many thanks,
Kaya
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