On Wednesday 22 February 2006 12:21, Longstreth, Lance wrote:
>In need of help formating some DASD..We have some DASD we want to format
>to be used by LVM. But when we try to format the volumes it does
>recognize them. ...
The VM guest has the DASD linked to it, but Linux doesn't know anything about
them. You need to tell Linux to put them online. That "unknown" status for
all your new DASD means that the dasd_mod device driver knows that something
was linked at that virtual device number at one time, but it doesn't know
anything about it anymore. You need to get it to say "active" there.
How this is done depends on which kernel you're running. For 2.4, I know it
off the top of my head:
echo set 2734-273d on > /proc/dasd/devices
echo set 2834-283d on > /proc/dasd/devices
You can specify individual virtual device numbers or whatever ranges you want.
After that, you should see that they are in the "active" state.
For 2.6 kernels, you have to have an entry for each DASD device in
the /etc/sysconfig/hardware directory. These can be copies of the files that
are already there for other DASD devices. You then use the hwup command to
put the DASD online. So you could, for example, do this:
cd /etc/sysconfig/hardware
copy dasd-bus-ccw-0.0.273e dasd-bus-ccw-0.0.2734
hwup dasd-bus-ccw-0.0.2734
And again check that your DASD is in the "active" state. Once the DASD is
active, then you can run dasdfmt on it.
- MacK.
-----
Edmund R. MacKenty
Software Architect
Rocket Software, Inc.
Newton, MA USA
>
>1. we have ran the zipl
>2. shutdown the LINUX LPAR
>3. did an inactivate using the HMC to refresh
>4. Reactivated LPAR using HMC
>5. After system was up logon on an did a DASD LIST to see if the new
>ones were showing. Yes they were from address 2735 on down on the list
>
>273e(ECKD) at ( 94: 0) is dasda : active at blocksize: 4096,
>601020 blocks, 2347 MB
>273f(ECKD) at ( 94: 4) is dasdb : active at blocksize: 4096,
>601020 blocks, 2347 MB
>283e(ECKD) at ( 94: 8) is dasdc : active at blocksize: 4096,
>601020 blocks, 2347 MB
>283f(ECKD) at ( 94: 12) is dasdd : active at blocksize: 4096,
>601020 blocks, 2347 MB
>2734(none) at ( 94: 16) is dasde : unknown
>2735(none) at ( 94: 20) is dasdf : unknown
>2736(none) at ( 94: 24) is dasdg : unknown
>2737(none) at ( 94: 28) is dasdh : unknown
>2738(none) at ( 94: 32) is dasdi : unknown
>2739(none) at ( 94: 36) is dasdj : unknown
>273a(none) at ( 94: 40) is dasdk : unknown
>273b(none) at ( 94: 44) is dasdl : unknown
>273c(none) at ( 94: 48) is dasdm : unknown
>273d(none) at ( 94: 52) is dasdn : unknown
>2834(none) at ( 94: 56) is dasdo : unknown
>2835(none) at ( 94: 60) is dasdp : unknown
>2836(none) at ( 94: 64) is dasdq : unknown
>2837(none) at ( 94: 68) is dasdr : unknown
>2838(none) at ( 94: 72) is dasds : unknown
>2839(none) at ( 94: 76) is dasdt : unknown
>283a(none) at ( 94: 80) is dasdu : unknown
>283b(none) at ( 94: 84) is dasdv : unknown
>283c(none) at ( 94: 88) is dasdw : unknown
>283d(none) at ( 94: 92) is dasdx : unknown
>
>6. Next tried to format the volumes with command - dasdfmt -f /dev/dasdx
>-d cdl -l LNX024 -p -t
>
>mflinux:/var/log # dasdfmt -f /dev/dasde -d cdl -l LNX005 -p -t
>Please enter the blocksize of the formatting [4096]:
>dasdfmt: Unable to open device /dev/dasde: No such device
>mflinux:/var/log # dasdfmt: Unable to open device /dev/dasde: No such
>device
>
>7. Display coming out of /var/log/warn
>
>Feb 22 11:08:18 mflinux kernel: dasd: No device registered as (94:16)
>Feb 22 11:09:22 mflinux kernel: dasd: No device registered as (94:92)
>Feb 22 11:12:21 mflinux inetd[535]: smtp/tcp: bind: Address already in
>use
>Feb 22 11:15:48 mflinux kernel: dasd: No device registered as (94:16)
>
>8. I have reverified that they are not being used by anyother system
>
>Can anyone give some guidance on this problem
>
>Lance Longstreth
>Bandag Inc
>GITS Infrastructure Security and Engineering
>zOS systems/Linux
>[EMAIL PROTECTED]
>
>
>
>
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