ioscan reports many floppy device

[Jack Fan]

All,
I have a problem, that when I use ioscan command to see my disk device on server, then it reports many floppy device file.

disk 13 10/16/4.0.1 disc3 CLAIMED DEVICE HP C5447A
/dev/dsk/c5t0d1 /dev/rdsk/c5t0d1
/dev/floppy/c5t0d1 /dev/rfloppy/c5t0d1
disk 14 10/16/4.0.2 disc3 CLAIMED DEVICE HP C5447A
/dev/dsk/c5t0d2 /dev/rdsk/c5t0d2
/dev/floppy/c5t0d2 /dev/rfloppy/c5t0d2
disk 15 10/16/4.0.3 disc3 CLAIMED DEVICE HP C5447A
/dev/dsk/c5t0d3 /dev/rdsk/c5t0d3
/dev/floppy/c5t0d3 /dev/rfloppy/c5t0d3
disk 16 10/16/4.0.4 disc3 CLAIMED DEVICE HP C5447A
/dev/dsk/c5t0d4 /dev/rdsk/c5t0d4
/dev/floppy/c5t0d4 /dev/rfloppy/c5t0d4
disk 17 10/16/4.0.5 disc3 CLAIMED DEVICE HP C5447A
/dev/dsk/c5t0d5 /dev/rdsk/c5t0d5
/dev/floppy/c5t0d5 /dev/rfloppy/c5t0d5
disk 18 10/16/4.0.6 disc3 CLAIMED DEVICE HP C5447A
/dev/dsk/c5t0d6 /dev/rdsk/c5t0d6
/dev/floppy/c5t0d6 /dev/rfloppy/c5t0d6
disk 20 10/16/4.0.7 disc3 CLAIMED DEVICE HP C5447A
/dev/dsk/c5t0d7 /dev/rdsk/c5t0d7
/dev/floppy/c5t0d7 /dev/rfloppy/c5t0d7

But when I create a vg and include those disk, then run vgdisplay, the device file is correct.
How come?

PV Name /dev/dsk/c1t1d3
PV Name /dev/dsk/c5t0d3 Alternate Link
PV Status available
Total PE 4607
Free PE 2

PV Name /dev/dsk/c5t0d4
PV Name /dev/dsk/c1t1d4 Alternate Link
PV Status available
Total PE 4607
Free PE 2

PV Name /dev/dsk/c1t1d5
PV Name /dev/dsk/c5t0d5 Alternate Link
PV Status available
Total PE 4607
Free PE 2

Thanks,

Jack Fan

[Victor Fridyev]

Hi, Jack

First of all these are not floppy, according to the type these are 12E AutoRaid LUNs.
Which disk is yours ? What is the problem ?

[Cheryl Griffin]

Jack,
I'd be curious to see if the major and minor numbers for all the devices are the same. Will you provide a listing for one set of these? For instance:
# ll /dev/dsk/c5t0d1 /dev/rdsk/c5t0d1 \
/dev/floppy/c5t0d1 /dev/rfloppy/c5t0d1

You can remove these extra device files with rmsf:
# rmsf -a -v /dev/floppy/c5*

[Bharat Katkar]

Your autoRAid ( or whatever it is) is connected with two links to your server and one of them will act as redundant link in case of failure.
That is why every device is seen with double entry one will be primary path and other one is called alternate path.

Picture will be more clear if you look at them thr' SAM or may be thr' SDM if you have it installed.
Don't worry about alternate links seen they are normal.


Hope that helps.
Regards,

[Joseph Loo]

hi,

refer to these posts:

http://forums1.itrc.hp.com/service/forums/questionanswer.do?threadId=215921

http://forums1.itrc.hp.com/service/forums/questionanswer.do?threadId=21612

you may like to rmsf those device files not needed.

regards.

[Cheryl Griffin]

I found a system that has the same symptom:
disk 18 52.6.0 disc3 CLAIMED DEVICE SEAGATE ST32550N
/dev/dsk/c1t6d0 /dev/rdsk/c1t6d0
/dev/floppy/c1t6d0 /dev/rfloppy/c1t6d0

In this case the device drivers were the same and had nothing to do with the issue.

I removed the floppy device files with rmsf. Note that if you run a blanket insf -e they will be recreated. The floppy device files have no impact and can be removed in any case.

# rmsf -a -v /dev/floppy/c1*
rmsf: Removing special file /dev/floppy/c1t2d0
rmsf: Warning: Cannot remove disc3 at 52.2.0
rmsf: Removing special file /dev/floppy/c1t5d0
rmsf: Warning: Cannot remove disc3 at 52.5.0
rmsf: Removing special file /dev/floppy/c1t6d0
rmsf: Warning: Cannot remove disc3 at 52.6.0

# insf -e
# ll /dev/floppy/c1*
brw-r----- 1 bin sys 28 0x012000 Jun 10 07:24 c1t2d0
brw-r----- 1 bin sys 28 0x015000 Jun 10 07:24 c1t5d0
brw-r----- 1 bin sys 28 0x016000 Jun 10 07:24 c1t6d0

[Sanjay_6]

Hi Jack,

Normal behavior for the disk3 driver. Check out itrc doc id A5282861.

http://www1.itrc.hp.com/service/cki/docDisplay.do?docLocale=en_US&docId=200000065678285

Hope this helps.

Regds