Very Weird SCSI Id Problem

From: Greg Wilson (gwilson@connect.com.au)
Date: Wed Feb 02 2005 - 00:21:50 EST


okies

Hardware:

1 x Sun 420R
2 x A1000
2 x Diff SCSI cards

Senario:

All working fine with 420R, 1x A1000 and 1x Diff SCSI

We need to add another A1000 as it was saturating the SCSI BUS

So 8 months ago we added another Diff SCSI card and A1000 and boot -r

The new card appeared as

       3. c69t5d0 <Symbios-StorEDGEA1000-0301 cyl 52473 alt 2 hd 128 sec 64>
          /pci@1f,4000/scsi@2/sd@5,0

mmm ive added card before and the only time i have seen c69t5* is when we
used a 5200 on an enterprise machine.

I though no dig deal of it and just made another raid volume and everything
returned to normal.

Then yesterday we lost the battery of the new A1000. This is where the weird
stuff began

we inserted the new battery and rebooted.

when i ran the command /etc/raid/bin/raidutil -c c69t5d0 -R to reset the
battery age it said Device not found: c69t5d0

hmm.. i ran the command format

<snip>
  titan[/etc/raid/bin]# format
  Searching for disks...done

  AVAILABLE DISK SELECTIONS:
       0. c0t0d0 <SUN18G cyl 7506 alt 2 hd 19 sec 248>
          /pci@1f,4000/scsi@3/sd@0,0
       1. c0t1d0 <SUN18G cyl 7506 alt 2 hd 19 sec 248>
          /pci@1f,4000/scsi@3/sd@1,0
       2. c1t5d0 <Symbios-StorEDGEA1000-0301 cyl 17232 alt 2 hd 64 sec 64>
          /pseudo/rdnexus@1/rdriver@5,0
       3. c69t5d0 <Symbios-StorEDGEA1000-0301 cyl 52473 alt 2 hd 128 sec 64>
          /pci@1f,4000/scsi@2/sd@5,0
  Specify disk (enter its number): ^D
<snip>

then i ran the command /etc/raid/bin/lad

<snip>
  titan[/etc/raid/bin]# lad
  c1t5d0 1T00844921 LUNS: 0
  c2t5d0 1T10514421 LUNS: 0
<snip>

hmm..

So the problem is Raidmanager thinks the SCSI Id is c2t5 but the OS sees
its as c69t5*

has anyone else seen this. im kinda worried about this now

<snip>

  titan[/etc/raid/bin]# raidutil -c c69t5d0 -i
  Device not found: c69t5d0

  raidutil failed!
  titan[/etc/raid/bin]# format
  Searching for disks...done

  AVAILABLE DISK SELECTIONS:
       0. c0t0d0 <SUN18G cyl 7506 alt 2 hd 19 sec 248>
          /pci@1f,4000/scsi@3/sd@0,0
       1. c0t1d0 <SUN18G cyl 7506 alt 2 hd 19 sec 248>
          /pci@1f,4000/scsi@3/sd@1,0
       2. c1t5d0 <Symbios-StorEDGEA1000-0301 cyl 17232 alt 2 hd 64 sec 64>
          /pseudo/rdnexus@1/rdriver@5,0
       3. c69t5d0 <Symbios-StorEDGEA1000-0301 cyl 52473 alt 2 hd 128 sec 64>
          /pci@1f,4000/scsi@2/sd@5,0
  Specify disk (enter its number):

  titan[/etc/raid/bin]# lad
  c1t5d0 1T00844921 LUNS: 0
  c2t5d0 1T10514421 LUNS: 0

  titan[/etc/raid/bin]# raidutil -c c2t5d0 -i
  LUNs found on c2t5d0.
  LUN 0 RAID 5 209901 MB

  Vendor ID Symbios
  ProductID StorEDGE A1000
  Product Revision 0301
  Boot Level 03.01.04.00
  Boot Level Date 04/05/01
  Firmware Level 03.01.04.81
  Firmware Date 10/17/03
  raidutil succeeded!

  titan[/etc/raid/bin]# df -kFufs
  /dev/md/dsk/d120 211663336 76905077 132641626 37% /export/01
  
  titan[/etc/raid/bin]# metastat d120
  d120: Mirror
    Submirror 0: d121
      State: Okay
    Pass: 1
    Read option: roundrobin (default)
    Write option: parallel (default)
    Size: 429850624 blocks

    d121: Submirror of d120
    State: Okay
    Size: 429850624 blocks
    Stripe 0:
        Device Start Block Dbase State Hot Spare
        c69t5d0s2 8192 Yes Okay

  titan[/etc/raid/bin]# metadb -i
        flags first blk block count
     a m p luo 16 1034 /dev/dsk/c0t0d0s7
     a p luo 1050 1034 /dev/dsk/c0t0d0s7
     a p luo 2084 1034 /dev/dsk/c0t0d0s7
     a p luo 16 1034 /dev/dsk/c0t1d0s7
     a p luo 1050 1034 /dev/dsk/c0t1d0s7
     a p luo 2084 1034 /dev/dsk/c0t1d0s7
     a p luo 16 1034 /dev/dsk/c69t5d0s2
 
<snip>

-- 
Greg Wilson	Senior System Administrator	greg.wilson@aapt.com.au
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