Last week I installed a 36GB IBM Ultrastar 36XP SCSI hard disk
in a PWS 433au. The disk is working fine so far, but I have
a little problem with it. The disk seems to spin down after
a certain time of inactivity, which then results into NFS
timeout errors the next time somebody tried to access the
disk. Is there a way to prevent the disk from spinning down?
If I can't find an answer, I will probably just install a
cron job which touches a file on the disk every 5 minutes
or so, but this solution is so ugly that I would like
to avoid it.
Thanks
Dirk
PS: I attach the uerf output for these disk events
(when the disk wakes up again)
----- EVENT INFORMATION -----
EVENT CLASS ERROR EVENT
OS EVENT TYPE 199. CAM SCSI
SEQUENCE NUMBER 4.
OPERATING SYSTEM DEC OSF/1
OCCURRED/LOGGED ON Thu May 6 14:45:16 1999
OCCURRED ON SYSTEM clalf7
SYSTEM ID x0007001E
SYSTYPE x00000000
----- UNIT INFORMATION -----
CLASS x0000 DISK
SUBSYSTEM x0000 DISK
BUS # x0002
x0088 LUN x0
TARGET x1
----- CAM STRING -----
ROUTINE NAME cdisk_rec_status
----- CAM STRING -----
Recovery progress event, this is NOT
_an error
----- CAM STRING -----
ERROR TYPE Information Message Detected
_(recovered)
----- CAM STRING -----
DEVICE NAME IBM DRHS36V 0110
----- CAM STRING -----
Active CCB at time of error
----- CAM STRING -----
CCB request completed with an error
ERROR - os_std, os_type = 11, std_type = 10
----- ENT_CCB_SCSIIO -----
*MY ADDR x0BF65E80
CCB LENGTH x00C0
FUNC CODE x01
CAM_STATUS x0084 CAM_REQ_CMP_ERR
AUTOSNS_VALID
PATH ID 2.
TARGET ID 1.
TARGET LUN 0.
CAM FLAGS x000054C0
CAM_DIR_NONE
CAM_SIM_QFRZDIS
CAM_SIM_QHEAD
CAM_INITIATE_SYNC
*PDRV_PTR x0BF65B28
*NEXT_CCB x00000000
*REQ_MAP x00000000
VOID (*CAM_CBFCNP)() x0057C260
*DATA_PTR x00000000
DXFER_LEN x00000000
*SENSE_PTR x0BF65B50
SENSE_LEN x40
CDB_LEN x06
SGLIST_CNT x0000
CAM_SCSI_STATUS x0002 SCSI_STAT_CHECK_CONDITION
SENSE_RESID x20
RESID x00000000
CAM_CDB_IO x000000000000000000000000
CAM_TIMEOUT x0000000A
MSGB_LEN x0000
VU_FLAGS x0000
TAG_ACTION x00
----- CAM STRING -----
Error, exception, or abnormal
_condition
----- CAM STRING -----
NOT READY - Logical unit is NOT ready
----- ENT_SENSE_DATA -----
ERROR CODE x0070 CODE x70
SEGMENT x00
SENSE KEY x0002 NOT READY
INFO BYTE 3 x00
INFO BYTE 2 x00
INFO BYTE 1 x00
INFO BYTE 0 x00
ADDITION LEN x18
CMD SPECIFIC 3 x00
CMD SPECIFIC 2 x00
CMD SPECIFIC 1 x00
CMD SPECIFIC 0 x00
ASC x04
ASQ x02
FRU x00
SENSE SPECIFIC x000000
ADDITIONAL SENSE
0000: 01010000 00000000 00000000 00000000 *................*
0010: 00000000 00000000 00000000 00000000 *................*
0020: 00000000 00000000 00000000 00000000 *................*
0030: 7E250000 00005E3C 00000000 00000000 *..%~<^..........*
Received on Thu May 06 1999 - 19:16:02 NZST