BCC replacement on one SC10

[ziad_1]

Hi all ,

please can somebody advise how we can replace the BCC on the SC10 JBOD configuration in high addressing mode split bus mode .the problem is that the controller is shown NO_HW in the ioscan but the disk are claimed and the srever is functioning normaly .please find attched the ioscan file .and there is also a message in the syslog file you find it bellow : May 14 06:23:36 lib-04 vmunix: SCSI: Reset detected -- lbolt: -1769448484, bus: 4 May 14 06:23:36 lib-04 vmunix: lbp->state: 60 May 14 06:23:36 lib-04 vmunix: lbp->offset: ffffffff May 14 06:23:36 lib-04 vmunix: lbp->uPhysScript: fa7fa000 May 14 06:23:36 lib-04 vmunix: From most recent interrupt: May 14 06:23:36 lib-04 vmunix: ISTAT: 02, SIST0: 02, SIST1: 00, DSTAT: 80, DSPS: fa7fa028 May 14 06:23:36 lib-04 vmunix: lsp: 0 May 14 06:23:36 lib-04 vmunix: lbp->owner: 0 May 14 06:23:36 lib-04 vmunix: scratch_lsp: 0 May 14 06:23:36 lib-04 vmunix: Pre-DSP script dump [fa7fa0e0]:
May 14 06:23:36 lib-04 vmunix: e0340004 00000000 e0100004 00000000
May 14 06:23:36 lib-04 vmunix: 48000000 00000000 78350000 00000000 May 14 06:23:36 lib-04 vmunix: Script dump [fa7fa100]:
May 14 06:23:36 lib-04 vmunix: 50000000 fa7fa028 80000000 0000000b
May 14 06:23:36 lib-04 vmunix: 0f000001 fa7fa580 60000040 00000000 May 14 06:23:36 lib-04 vmunix: NCR chip register dump for: 0x100200a May 14 06:23:36 lib-04 vmunix: 00: SCNTL3: 5f SCNTL2: 00 SCNTL1: 00 SCNTL0: d8
May 14 06:23:36 lib-04 vmunix: 04: GPREG: 0b SDID: 0c SXFER: 1f SCID: 47
May 14 06:23:36 lib-04 vmunix: 08: SBCL: 00 SSID: 8c SOCL: 00 SFBR: 00
May 14 06:23:36 lib-04 vmunix: 0c: SSTAT2: 0a SSTAT1: 0f SSTAT0: 00 DSTAT: 80
May 14 06:23:36 lib-04 vmunix: 10: DSA: c0ffffff May 14 06:23:36 lib-04 vmunix: 14: MBOX1: 00 MBOX0: 00 ISTAT1: 00 ISTAT: 00
May 14 06:23:36 lib-04 vmunix: 18: CTEST3: 71 CTEST2: 35 CTEST1: 00 CTEST0: ff
May 14 06:23:36 lib-04 vmunix: 1c: TEMP: fa7fad78 May 14 06:23:36 lib-04 vmunix: 20: CTEST6: c0 CTEST5: 24 CTEST4: 00 DFIFO: 00
May 14 06:23:36 lib-04 vmunix: 24: DCMDDBC: 50000000 May 14 06:23:36 lib-04 vmunix: 28: DNAD: fa7fa100 May 14 06:23:36 lib-04 vmunix: 2c: DSP: fa7fa108 May 14 06:23:36 lib-04 vmunix: 30: DSPS: fa7fa028 May 14 06:23:36 lib-04 vmunix: 34: SCRATCHA: ff00007d May 14 06:23:36 lib-04 vmunix: 38: DCNTL: a1 DWT: 00 DIEN: 7f DMODE: 4c
May 14 06:23:36 lib-04 vmunix: 3c: ADDER: faff4130 May 14 06:23:36 lib-04 vmunix: 40: SIST1: 00 SIST0: 00 SIEN1: 87 SIEN0: 8f
May 14 06:23:36 lib-04 vmunix: 44: GPCNTL: 0f MACNTL: f0 SWIDE: 00 SLPAR: 6b
May 14 06:23:36 lib-04 vmunix: 48: RESPID1: 00 RESPID0: 80 STIME1: 00 STIME0: 0c
May 14 06:23:36 lib-04 vmunix: 4c: STEST3: 80 STEST2: 00 STEST1: 0c STEST0: 76
May 14 06:23:36 lib-04 vmunix: 50: RESV50: 80 RESV51: e0 SIDL1: 00 SIDL0: 00
May 14 06:23:36 lib-04 vmunix: 54: CCNTL1: 00 CCNTL0: 00 SODL1: 0a SODL0: 00
May 14 06:23:36 lib-04 vmunix: 58: RESV58: 00 RESV59: 00 SBDL1: 00 SBDL0: 00
May 14 06:23:36 lib-04 vmunix: 5c: SCRATCHB: 00000000 May 14 06:23:36 lib-04 vmunix: 60: SCRATCHC: 00000000 May 14 06:23:36 lib-04 vmunix: 64: SCRATCHD: 0000

[Michael Steele_2]

Your A5272A / SC10 disk array is listed as 'NO_HW' at HW 0/4/0/0.14.0.

But you've got another at 0/7/0/0.14.0 that 'CLAIMED'.

Time to put in a HW call and get a CE out there.

You can also try the trouble shooting commands listed here, especially 'irdiag -v':

http://docs.hp.com/cgi-bin/fsearch/framedisplay?top=/hpux/onlinedocs/J6173-90007/J6173-90007_top.html&con=/hpux/onlinedocs/J6173-90007/00/00/44-con.html&toc=/hpux/onlinedocs/J6173-90007/00/00/44-toc.html&searchterms=A5272A&queryid=20030514-114553

[Eugeny Brychkov]

Looking to the ioscan proided I conclude that BCC is not dead completely - if it would die all backend devices would dissapear.
BCC is not hot pluggable and not customer replaceable, so I recommend you to call HP.
But before please check if SC10 power cycle will resolve the problem, and if this issue intermittent or not - is this BCC sometimes CLAIMED and sometimes NO_HW? Did you ever see backend disks as NO_HW also?
Eugeny

[ziad_1]

yes one time I have made ioscan for the other controller which is claimed now and it was NO_HW with the disks attached to it also but after 30 second or less I have made ioscan again and everything was claimed ??? thanks in advance for your reply.

[ziad_1]

yes one time I have made ioscan for the other controller which is claimed (0/7/0/0) now and it was NO_HW with the disks attached to it also but after 30 second or less I have made ioscan again and everything was claimed ??? thanks in advance for your reply.

[Vincent Farrugia]

Hello,

There are a lot of possibilities for this problem:

1. HBA faulty
2. Cable faulty
3. Terminator faulty
4. BCC port faulty
5. That's it.

The BCC is not necessarily faulty; it could be other things. You should call HP to diagnose the problem themselves.

HTH,
Vince

[Eugeny Brychkov]

Are installed BCCs terminated with LVD terminator at their other unused SCSI connector?
Eugeny