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SCSI or IDE ?? 1

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nappaji

Programmer
Mar 21, 2001
76
US
I have a Sun solaris 2.5.1 Ultra 5 machine.
I want to know if the disk inside if that system is IDE or SCSI type?? Is there acommand to determine this??

Please help.
 
I believe it's a SCSI disk with an SCA connector. That's a special connector for SCSI drives that are hot swappable. A single connector on the back of the drive carries data, control, and power to the drive.

If the system runs, do the following command...
Code:
   df -k /
This will give you something like...
Code:
Filesystem            kbytes    used   avail capacity  Mounted on
/dev/dsk/c0t0d0s1    2569479 2115488  402602    85%    /
The first part is the logical device name. That's the [tt]/dev/dsk/c0t0d0s1[/tt] part. The "[tt]c0t0d0s1[/tt]" means; Controller 0 (c0), Target 0 (t0), Disk 0 (d0), Slice 1 (s1). If there's a "Target", it's SCSI. If it's IDE, it would look like [tt]/dev/dsk/c0d0s1[/tt].

You can also confirm this by doing this...
Code:
ls -l /dev/dsk/c0t0d0s1
This gives you something like...
Code:
lrwxrwxrwx   1 root     root          51 May 20 16:25 /dev/dsk/c0t0d0s1 -> ../..
/devices/sbus@1f,0/SUNW,fas@e,8800000/sd@0,0:b
This gets you the physical device name. That [tt]sd[/tt] toward the end means it's a SCSI disk.

The [tt]sbus@1f,0[/tt] is the internal SBUS. The [tt]SUNW,fas@e,8800000[/tt] is a SCSI controller on that bus. The [tt]sd@0,0:b[/tt] is the SCSI Disk 0 at target 0, slice 1 ([tt]:b[/tt]).

You can also use the [tt]format[/tt] command to check the drives.

You can also go to Sun's documentation and check the specs. Go to for the Sparc 5 and 10.

Finally you can open up the case and see what it is! You may have to check the model number and Google it or go to the vendor's web site.

Hope this helps.
 
Never mind Sam, I think your SCSI explanation deserves a star anyways! Cheers.
 
Easy way to remember the C1t2d0s3 bit is
Cath That Darn Squid. Love it.
 
Ah, but it's when you translate squid into Calamarie you get the problem! ;-)
 
Any good Chef can translate squid into Calamari! I see no problem!

[thumbsup]

 
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