pvcreate error

[Brian Harris]

I am installing a seagate ST15150N (4gig) drive
on an old hp/ux 10.20 machine hp 9000/847

When I do pvcreate -B /dev/rdsk/c1t1d0 I get the followin error:
pvcreate: writing LVM record: Invalid Argument

I have previously installed same model of drive on system and it worked fine. By looking at ioscan the disk is claimed and seems to be fine. But when I look at diskinfo
It says bytes per sector are 520 while on the working disk they are 512 which seems to be correct.

Does anyone know how I can correct this on the disk that is not working correctly, I am hoping that there is a way to reformat the disk.

[Peter Godron]

Brian,
you can always mkfs the disk. See man mkfs for the disk setup you want (hfs/vxfs).

Once you happy with the block size etc. read:
http://forums1.itrc.hp.com/service/forums/questionanswer.do?threadId=128411
and
http://forums1.itrc.hp.com/service/forums/questionanswer.do?threadId=1031364

Test with the dd command.

Please also read:
http://forums1.itrc.hp.com/service/forums/helptips.do?#33 on how to reward any useful answers given to your questions. Your profile shows less than 20% of answers were found wotrth of points ?!

[Coolmar]

Can you write to this device?
try:
# dd if=/stand/vmunix of=/dev/rdsk/c1t1d0 bs=1024k

[Denver Osborn]

with the block size set to 520 looks likes the drive came from a disk array.

If you have command view installed, use the JBODfmt command to format the disk to 512 bytes, then you can pvcreate it.

search for JBODfmt on the forums, here's one thread...

http://forums1.itrc.hp.com/service/forums/questionanswer.do?threadId=805469

Hope this helps,
-denver

[Ivan Krastev]

Hi Brian,

Use JBODfmt from Command View :
JBODfmt /dev/dsk/cXtXdX
pvcreate -f /dev/rdsk/cXtXdX


regards,
ivan

[Raj D.]

Biran,

Check your lun has configured properly, and you can read and write to the disk (you can check with dd)

# dd if=/dev/c1t1d0 of=/dev/null bs=1024k
(To read)

and
# dd if=/stand/vmunix of=/dev/c1t1d0 bs=1024k
(To write)

And try with # pvcreate -f /dev/rdsk/c1t1d0

In case of problem check the lun and disk.


hth,
Raj.

[Raj D.]

Brian,

Check your lun has configured properly, and you can read and write to the disk (you can check with dd)

# dd if=/dev/c1t1d0 of=/dev/null bs=1024k
(To read)

and
# dd if=/stand/vmunix of=/dev/c1t1d0 bs=1024k
(To write)

And try with # pvcreate -f /dev/rdsk/c1t1d0

In case of problem check the lun and disk.


hth,
Raj.

[Brian Harris]

I have tried several of suggestions without any luck on either fixing problem or figuring out next step Below are results of some of suggestions

1) I am not sure what command view is, but I did a search for JBODfmt and did not find it, so I presume this system does not have it. I did not originally setup this system.

2) I have tried using mkfs
# mkfs -F hfs /dev/dsk/c1t1d0
mkfs (hfs): read of lvm record failed
mkfs (hfs): I/O error
# mkfs -F hfs /dev/dsk/c1t1d0 512
mkfs (hfs): read of lvm record failed
mkfs (hfs): I/O error

I did not understand how to specify block information into command. but I don't think it would work since getting lvm record failed

3)I have looked into using mediainit to initialize disk but I got following results:
# mediainit -v /dev/rdsk/v1t1d0
mediainit: can't access file /dev/rdsk/v1t1d0 - No such file or directory
# mediainit -v /dev/rdsk/c1t1d0
mediainit: initialization process starting
mediainit: locking SCSI device
mediainit: scsi_mi: Target lock failed
mediainit: scsi_mi: LUN lock failed
scsi_mi: Unable to set EXCLUSIVE mode: Device busy

4) I had earlier tried using DD command where it fails, I assume it is failing in part because sector size is 520 and not 512
below is result from different tries. I don't really understand if this is proof that disk is bad or just that becuause bytes per sector on disk are screwed up.

# dd if=/dev/rdsk/c1t1d0 of=/dev/null bs=1024
dd read error: I/O error
0+0 records in
0+0 records out
# dd if=/stand/vmunix of=/dev/rdsk/c1t1d0 bs=1024
I/O error
1+0 records in
0+1 records out
# dd if=/stand/vmunix of=/dev/rdsk/c1t1d0
dd: /dev/rdsk/c1t1d0 Use a blocksize >= the logical block size 520
# dd if=/stand/vmunix of=/dev/rdsk/c1t1d0 bs=520
I/O error
1+0 records in
0+1 records out

5) this is the diskinfo for the disk
# diskinfo -v /dev/rdsk/c1t1d0
SCSI describe of /dev/rdsk/c1t1d0:
vendor: SEAGATE
product id: ST15150N
type: direct access
size: 4121329 Kbytes
bytes per sector: 520
rev level: HP03
blocks per disk: 8242659
ISO version: 0
ECMA version: 0
ANSI version: 2
removable media: no
response format: 2
(Additional inquiry bytes: (32)32 (33)35 (34)37 (35)34 (36)30 (37)38 (38)34 (
39)0 (40)0 (41)0 (42)0 (43)0 (44)0 (45)0 (46)0 (47)0 (48)0 (49)0 (50)0 (51)0 (52
)0 (53)0 (54)0 (55)0 (56)0 (57)0 (58)0 (59)0 (60)0 (61)0 (62)0 (63)0 (64)0 (65)0
(66)0 (67)0 (68)0 (69)0 (70)0 (71)0 (72)0 (73)0 (74)0 (75)0 (76)0 (77)0 (78)0 (
79)0 (80)0 (81)0 (82)0 (83)0 (84)0 (85)0 (86)0 (87)0 (88)0 (89)0 (90)0 (91)0 (92
)43 (93)6f (94)70 (95)79 (96)72 (97)69 (98)67 (99)68 (100)74 (101)20 (102)28 (10
3)63 (104)29 (105)20 (106)31 (107)39 (108)39 (109)35 (110)20 (111)53 (112)65 (11
3)61 (114)67 (115)61 (116)74 (117)65 (118)20 (119)41 (120)6c (121)6c (122)20 (12
3)0 (124)7d (125)c5 (126)e3 (127)0 (128)0 (129)2 (130)8 (131)0 (132)0 (133)0 (13
4)0 (135)0 (136)0 (137)0 (138)0 (139)0 (140)0 (141)0 (142)0 )

[Denver Osborn]

The drive won't work the way you need it to on hpux as long as the bytes per sector are 520. I don't think you'll have any luck finding Command View (JOBfmt) on the 10.20 box either.

If you have any 11.X boxes attached to VA arrays, look for JBODfmt there. If you find it installed on 11.X, attach your disk there and use JBODfmt so that it formats the drive to 512 bytes per sector.

You can also download command view if you have access to an 11.x box, look at this thread.

http://forums1.itrc.hp.com/service/forums/questionanswer.do?threadId=763857

-denver