I have a Sun Ultra 1 running Solaris 7 with the latest patches. I have an
external Seagate drive. I shutdown the system and placed another hard
drive into the external case to test to see if this new hard drive was
working. scsi-probe-all picked up the drive but it stalled when I did a
boot -r. I just assumed the new hard drive was faulty. So I shutdown,
replaced it with my original drive and did a boot -r. It configured the
devices okay but complained because it couldn't find /dev/dsk/c1t3d0s7
when it booted so I took it out of /etc/vfstab. I'm assuming that it
assigned it a different device address.

After messing around with it. Here is what is happening.

probe-scsi (doesn't detect the external drive)
probe-scsi-all (does)

boot -r stalls for 20+ minutes. It gives 2 WARNINGs similar to this.

WARNING: /sbus at 1f,0/SUNW,fas at 0,8800000
connected command timeout for target 4
<same address>
TARGET 4 reducing sync transfer rate.

and then boots okay.

When I type format I get this after about 20+ minutes:

Searching for disks...done

c1t4d0: configured with capacity of 4.00GB

AVAILABLE DISK SELECTIONS:
0. c0t0d0 <SUN2.1G cyl 2733 alt 2 hd 19 sec 80>
/sbus at 1f,0/espdma at e,8400000/esp at e,8800000/sd at 0,0
1. c0t1d0 <SUN2.1G cyl 2733 alt 2 hd 19 sec 80>
/sbus at 1f,0/espdma at e,8400000/esp at e,8800000/sd at 1,0
2. c1t0d0 <SEAGATE-ST15230N-0638 cyl 3974 alt 2 hd 19 sec 111>
/sbus at 1f,0/SUNW,fas at 0,8800000/sd at 0,0
3. c1t1d0 <SEAGATE-ST15230N-0638 cyl 3974 alt 2 hd 19 sec 111>
/sbus at 1f,0/SUNW,fas at 0,8800000/sd at 1,0
4. c1t2d0 <SEAGATE-ST15230N-0638 cyl 3974 alt 2 hd 19 sec 111>
/sbus at 1f,0/SUNW,fas at 0,8800000/sd at 2,0
5. c1t3d0 <SEAGATE-ST15230N-0638 cyl 3974 alt 2 hd 19 sec 111>
/sbus at 1f,0/SUNW,fas at 0,8800000/sd at 3,0
6. c1t4d0 <SEAGATE-ST15230N-0638 cyl 3974 alt 2 hd 19 sec 111>
/sbus at 1f,0/SUNW,fas at 0,8800000/sd at 4,0
7. c1t5d0 <SEAGATE-ST15230N-0638 cyl 3974 alt 2 hd 19 sec 111>
/sbus at 1f,0/SUNW,fas at 0,8800000/sd at 5,0
8. c1t6d0 <SEAGATE-ST15230N-0638 cyl 3974 alt 2 hd 19 sec 111>
/sbus at 1f,0/SUNW,fas at 0,8800000/sd at 6,0
9. c1t8d0 <drive type unknown>
/sbus at 1f,0/SUNW,fas at 0,8800000/sd at 8,0
10. c1t9d0 <drive type unknown>
/sbus at 1f,0/SUNW,fas at 0,8800000/sd at 9,0
11. c1t10d0 <drive type unknown>
/sbus at 1f,0/SUNW,fas at 0,8800000/sd at a,0
12. c1t11d0 <drive type unknown>
/sbus at 1f,0/SUNW,fas at 0,8800000/sd at b,0
13. c1t12d0 <drive type unknown>
/sbus at 1f,0/SUNW,fas at 0,8800000/sd at c,0
14. c1t13d0 <drive type unknown>
/sbus at 1f,0/SUNW,fas at 0,8800000/sd at d,0
15. c1t14d0 <drive type unknown>
/sbus at 1f,0/SUNW,fas at 0,8800000/sd at e,0
16. c1t15d0 <drive type unknown>
/sbus at 1f,0/SUNW,fas at 0,8800000/sd at f,0
Specify disk (enter its number):

It usually only displays 3 entries. I don't know what the rest of these
are. While I'm waiting for the output, this is flying across the console:

Jun 20 12:42:47 sunhiz unix: WARNING: /sbus at 1f,0/SUNW,fas at 0,8800000/sd at f,0
(sd21):
Jun 20 12:42:47 sunhiz device busy too long
Jun 20 12:43:10 sunhiz unix: WARNING: /sbus at 1f,0/SUNW,fas at 0,8800000/sd at f,0
(sd21):
Jun 20 12:43:10 sunhiz device busy too long
Jun 20 12:43:33 sunhiz unix: WARNING: /sbus at 1f,0/SUNW,fas at 0,8800000/sd at f,0
(sd21):
Jun 20 12:43:33 sunhiz device busy too long
Jun 20 12:43:33 sunhiz unix: WARNING: /sbus at 1f,0/SUNW,fas at 0,8800000/sd at f,0
(sd21):
Jun 20 12:43:33 sunhiz offline
Jun 20 12:43:56 sunhiz unix: WARNING: /sbus at 1f,0/SUNW,fas at 0,8800000/sd at f,0
(sd21):
Jun 20 12:43:56 sunhiz device busy too long

I have got the drive to mount once by doing it manually. It listed the
top-level directories with "I/O error" beside each one and I could not
traverse any of them.

All the other times I tried to mount them, I get

mount:Interrupted system call
mount:cannot mount /dev/dsk/c1t4d0s0A

This drive was working before I took it out. I'm in dire need of help
because it contains the home directories.

I will summarize.

Any info or docs you can point me to would be great.
Thanks in advance.

Frank J. Miles
System Administrator
270-745-8836
milesfj at hera.wku.edu