Re: pumping storage using DST

[Sue Baker <smbaker@xxxxxxxxxx>]

Jim, there are a few things that may be of assistance to you.
Some of your comments later in the thread make me wonder if they
might be helpful or not.  Please reply with a phone number so we
can chat about it.

Sue Baker
iSeries Advanced Technical Support
Rochester, MN

On 23 Jul 2002, you wrote in gmane.comp.hardware.ibm.midrange:

> As mentioned in the RCLSTG thread, we'll be adding towers of
> "new" (slightly less obsolete) disk technology to an ASP and
> retiring the original disks by removing them from the ASP and
> letting the system pump the data to the new disks.
>
> We're talking about around 800 GB on 116 existing disks -
> RAID5 configured 8 GB 6713's.  We'll be adding three 5065
> cabinets with 135 disk - 17.5 GB 4318's.  The system is the
> aforementioned 740 12-way brontosaurus with the older CPU's.
>
> Has anyone undertaken a move of this magnitude?  I have no
> idea how long the DST will take to move the data.  I wouldn't
> be surprised if it took seven hours or seven days.  If anyone
> has any similar experiences that I could scale up or down to
> use as a basis it would be very helpful.  No one locally among
> the CE's and BP's had anything to offer, and the support
> center wouldn't go out on a limb.
>
> At the moment we're planning to take on 16 or 24 of the disk
> in one shot and try to use it to extrapolate for the rest.  If
> it doesn't look like we can finish in our weekend processing
> time frame we may have to do it in chunks over the next few
> weekends.
>
> Much thanks...