10 More Discussions You Might Find Interesting
1. AIX
Hello Friends,
My question/problem is that I noticed 2 servers in my environment vscsi is showing up as defined (not available) or is defined and not showing the path to both vscsi's when ruining lspath command. I am new to AIX admin, work alone, and work in an small environment. My question is,... (12 Replies)
Discussion started by: Adnans2k
12 Replies
2. AIX
If you're familiar with vscsi mappings thru a VIO Server, you are probably aware, on an AIX 6.1 Client LPAR, that:
print cvai | kdbcan provide useful information to you.... like VIO Server name & vhost #. But, "cvai" does not appear to be part of the Kernel Debugger in AIX 5.3.
My question is... (3 Replies)
Discussion started by: The Doctor
3 Replies
3. AIX
Hello,
I have a VIOS System and would like to do mapping some hdisks, hdisk160 until hdisk165 to a vSCSi Adapter. I try to do this in the oem_setup_env like the following:
for i in $(lspv | grep hdisk* | awk {'print $1'};
do
mkdev -V $i -p vhost20
done
There where a mapping with... (4 Replies)
Discussion started by: torsten163
4 Replies
4. AIX
Hi,
I want to change from vscsi to npiv. Is it possible to use both on the same adapter, so we can change the systems one by one, or must we place a second FC adapter in the VIO servers?
Thanks,
Ronald (2 Replies)
Discussion started by: ronaldm60
2 Replies
5. AIX
Hi All,
I'm preparing to migrate some servers from vscsi to pass-thru NPIV. I am planning to have the SAN team move the exact LUNs from vio1/vio2 to those two VWWN through NPIV.
My question is on the partition itself.. right now, let's say I have hdisk0/1/2/3/4 that are part of datavg. They... (2 Replies)
Discussion started by: lapfrank
2 Replies
6. UNIX for Advanced & Expert Users
Hi people,
Does anyone know how the AIX form the hdisk addresses ? I mean, if the AIX use the SAN fields like switch id, domain id, port id and etc...
After I understand that my next question is: Why the AIX do not change the hdisks addressing if I change the AIX HBAs of the SAN switch and/or... (1 Reply)
Discussion started by: rapina
1 Replies
7. AIX
Good evening ...
does anyone of you know how to change major/minor numbers of disk devices ?
I had to migrate from raid1 to raid5 and this messed up my ASM cluster - I know which devices should have which IDs to match the content - but I have no idea how to change it.
Any help would be... (2 Replies)
Discussion started by: zxmaus
2 Replies
8. AIX
Hello,
I am trying to "deinstall devices.fcp.disk.array.rte" fileset from an AIX5.3 box. Have been unsuccessful so far. "smit remove" threw the below error:
FAILURES
--------
Filesets listed in this section failed pre-deinstall verification
and will not be removed.
... (2 Replies)
Discussion started by: ronykris
2 Replies
9. UNIX for Dummies Questions & Answers
I am having trouble understanding the difference between a passthrough device and a named device and when you would use one or the other to access equipment.
As an example, we have a tape library and giving the command
"camcontrol devlist" gives the following output:
akx# camcontrol... (1 Reply)
Discussion started by: thumper
1 Replies
10. Solaris
I'm trying to mirror 2 eide disks on a solaris 10 x86 system.
Im trying to use the prtvtoc | fmthard command to mirror the vtoc.
How do they represent the entire disk like in solaris 9 (c0t0d0s2 = entire device)
0. c0d0 <DEFAULT cyl 26497 alt 2 hd 16 sec 63>
... (1 Reply)
Discussion started by: BG_JrAdmin
1 Replies
diskinfo(1M) diskinfo(1M)
NAME
diskinfo - describe characteristics of a disk device
SYNOPSIS
character_devicefile
DESCRIPTION
The command determines whether the character special file named by character_devicefile is associated with a SCSI or floppy disk drive. If
so, summarizes the disk's characteristics.
The command displays information about the following characteristics of disk drives:
Vendor name Manufacturer of the drive (SCSI only)
Product ID Product identification number or ASCII name
Type Floppy or SCSI classification for the device
Disk Size of disk specified in bytes
Sector Specified as bytes per sector
Both the size of disk and bytes per sector represent formatted media.
Options
The command recognizes the following options:
Return the size of the disk in 1024-byte sectors.
Display a verbose summary of all of the information
available from the device. For floppy drives, this option has no effect.
SCSI disk devices return the following:
Vendor and product ID
Device type
Size (in bytes and in logical blocks)
Bytes per sector
Revision level
SCSI conformance level data
DIAGNOSTICS
Most of the diagnostic messages from are self-explanatory. However, one diagnostic message deserves further clarification. If the command
fails to access the lunpath corresponding to a given special file, it displays the following diagnostics data, which contains device iden-
tification and capability information:
device type 127 (unknown); device is inaccessible
iso ecma ansi rmb dtq resv rdf
WARNINGS
As of release 10.20 of HP-UX, certain IDE devices, CD-ROMs in particular, will respond to inquiries as if they were SCSI devices. There-
fore, the text "SCSI describe" in the output of the command does not definitively mean that the disk is in fact a SCSI drive (especially in
the case of CD-ROMs). Use to check which type of INTERFACE node, SCSI or IDE, the device's hardware path lies beneath, in order to defini-
tively determine a drive's interface.
DEPENDENCIES
General
The command supports floppy and HP SCSI disk devices.
SCSI Devices
The SCSI specification provides for a wide variety of device-dependent formats. For non-HP devices, may be unable to interpret all of the
data returned by the device. Refer to the drive operating manual accompanying the unit for more information.
AUTHOR
was developed by HP.
SEE ALSO
ioscan(1M), lsdev(1M), disktab(4), disk(7).
diskinfo(1M)