Re: Hot swapping of disk
From: root (postmaster_at_buchanangc.com)
Date: 09/18/04
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Date: Sat, 18 Sep 2004 00:09:00 -0700
"Dave Satchell" <dsatchell@REMOVECAPSaustindvd.net> wrote in message
news:uxYxCXUnEHA.2076@TK2MSFTNGP15.phx.gbl...
> I've seen several respected people on here post that they do this
> themselves for the same reasons that you mentioned. I've considered this
> same idea myself and here is what I've found:
>
> * Like you've said, don't make it part of a raid. If should just be a
> drive letter that is the target of your standard SBS backup.
Yep.
> * Use the exact same drive model every time.
I haven't experimented with this but don't see why drives need to be
identical?
> I would use the same drive
> type for the OS drive/array that you use for the backup.
Why? This is an SATA non-RAID backup drive. It need not be fast but just
big. Maybe the working array is SCSI.
> Then you have
> multiple backup drives in case of a failure.
Right, one offsite.
> ?? I do have questions about the safety of hot swapping IDE or SATA
> drives. Is it dangerous to IDE or SATA drives to be hot swapped?
Not dangerous for SATA as hot swap is part of the spec.
> Is the
> hot swap capability a function of the drive and/or the caddie? Does the
> controller card have to specifically support hot swap?
Yes to all and since it's SATA all support hot swap.
> If your comfortable with these issues then go for it. I plan on making
> this my primary backup recommendation as soon as I get the questions
> above answered.
I'm doing essentially that now on SBS2003 systems but I mount the hot swap
big SATA drive on a workstation connected by gigabit ethernet and backup the
server and all workstations to that SATA drive on the workstation. I have
any extra hotswap SATA bay on the server and have tested it all there also
and it works fine.
> Tristan Leask wrote:
> > It shouldnt screw any data up as the SATA card just has this one back
drive
> > attached to it. It gets put in, and then over night the system runs a
> > backup to it, then in the morning we put a new identical disk in it for
the
> > next back up.
> >
> > Tristan
> >
> > "Chris Jones" <cka691@alltel.net> wrote in message
> > news:uaDGZzKnEHA.3992@TK2MSFTNGP15.phx.gbl...
> >
> >>Not meant for backup swapping, doing what you are trying to do will keep
> >>server rebuilding arrays and task the system and possibly cause data
loss.
> >
> > I
> >
> >>have tried this in the past and it simply doesnt work well. Removal of
> >
> > dead
> >
> >>drive is ok, but I wouldnt even hot swap the dead drive, just too risky.
I
> >>once hot swapped and lost both arrays, gave me a big scare, luckily
> >>everthing turned out ok.
> >>"Henry Craven" <IUnknown@Dot.Nyet> wrote in message
> >>news:uW2sUvJnEHA.3172@TK2MSFTNGP10.phx.gbl...
> >>
> >>>Really Bad Idea.
> >>>
> >>>Hot Swap HDDs are meant for emergency replacement of drives in an
array,
> >>>not for popping drives in and out like Floppy Disks or Backup Tapes.
> >>>Your connectors are going to wear out in no time
> >>>
> >>>JMHO.
> >>>
> >>>--
> >>>Henry Craven {SBS-MVP}
> >>>CI Information Technology
> >>> Melbourne Australia
> >>>
> >>>"Tristan Leask" <no@no.com> wrote in message
> >>>news:e546m4InEHA.608@TK2MSFTNGP09.phx.gbl...
> >>>
> >>>>Hi all,
> >>>>
> >>>>We have a SATA card (Silicon Image 3112) installed in our server
> >>>
> >>>connected
> >>>
> >>>>up to a disk caddie which allows us to remove/add a large disk to our
> >>>>server. This disk is meant for backup purposes as it is a lot cheaper
> >>>
> >>>than
> >>>
> >>>>tapes.
> >>>>
> >>>>The question is, is this okay for just removing the disk from or
> >>>
> >>>sbs2k3
> >>>
> >>>>server. Will it cause any problems. We have also tried to change the
> >>>>policies for the disk that is to be removed by going to the device
> >>>
> >>>manager,
> >>>
> >>>>selecting the drive, properties, policies. On this tab we want to
> >>>
> >>>change
> >>>
> >>>>the write caching and safe removal to optimize for performance, but we
> >>>
> >>>can't
> >>>
> >>>>as these are disabled. Why is this?
> >>>>
> >>>>Cheers all,
> >>>>
> >>>>Tristan
> >>>>
> >>>>
> >>>
> >>>
> >>
> >
> >
>
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