10 More Discussions You Might Find Interesting
1. AIX
Hi,
This is follow up to the post https://www.unix.com/aix/233361-san-disk-appearing-double-aix.html
When I connected Pseries Machine HBA Card ( Dual Port ) directly to the SAN Storage DS4300 , I was able to see Host Port Adapter WWN numbers , although I was getting this message... (2 Replies)
Discussion started by: filosophizer
2 Replies
2. Solaris
I am going to do a SAN Array migration and need the sequence of steps required on the Solaris cluster before moving the old array luns to new array luns.
Here are the steps and I need info on the bold points:( I might even be wrong on the sequence of steps please correct me if I am wrong)
1.... (0 Replies)
Discussion started by: sunshinedeepu
0 Replies
3. AIX
Has anyone tried SAN to SAN mirroring on IBM DS SAN Storage.
DS5020 mentions Enhanced Remote Mirror to multi-LUN applications
I wonder if Oracle High availibility can be setup using Remote Mirror option of SAN ? (1 Reply)
Discussion started by: filosophizer
1 Replies
4. AIX
Hello,
I have DS4000 IBM SAN Storage ( aka FastT Storage )
One of my disks has failed and I had a hot spare disk covering all the arrays. As the disk failed, immediately the hotspare disk took over the failed disk ( see the JPEG in the attachment )
My Question: How can I make the hotspare... (1 Reply)
Discussion started by: filosophizer
1 Replies
5. AIX
Hello,
I have IBM SAN STORAGE DS4100 and one of the cache battery for the controller is dead. Suddenly the performance has been degraded and access to SAN disks ( reading and writing ) became very slow ?
My query: Replacing the battery will take 6 days, so in the mean time what are the ways... (1 Reply)
Discussion started by: filosophizer
1 Replies
6. Solaris
HI all,
I had recently change the Server storage from EMC to the IBM SAN.
but after the configuration, the IBM success to see the server HBA port and successfully assign a LUN for the server.
When i go to the server, and restarted it. i use the "format" command to check, but din see any... (1 Reply)
Discussion started by: SmartAntz
1 Replies
7. Solaris
Hi All
Recently i plan use our company Sunfire V490 to hook up the IBM SAN Storage DS4000.
But i not sure is it got any requirement to do this, is it need any extra driver, equipment??? hope can get some advice from here..
Kindly advise.
Thanks all (3 Replies)
Discussion started by: SmartAntz
3 Replies
8. AIX
Hello,
I have AIX 6.1 with TL 4 and it is connected to IBM SAN STORAGE DS4700
After assigning some disks from SAN to AIX, I can see the disks in my AIX as
hdisk2 Available 05-00-02 MPIO Other DS4K Array Disk
hdisk3 Available 05-00-02 MPIO Other DS4K Array Disk
But it should... (0 Replies)
Discussion started by: filosophizer
0 Replies
9. AIX
I have a question about SAN commands
I have almost 15Tb of disk on my san
but assigned and something else I have almost 11Tb
There is a command to know, what its my real total storage capacity and
another command to know how much I used .?
Thanks again in advance (0 Replies)
Discussion started by: lo-lp-kl
0 Replies
10. AIX
Hi All,
I would like to share this incident that happened the other day.
I have a question with this, https://www.unix.com/aix/64921-create-new-vg-san-rename-fs.html
And I thought it's related to the above link but the problem was the ibm san 4300 cache battery was dead and I need to click... (2 Replies)
Discussion started by: itik
2 Replies
st_san_safe(5) OBSOLETED st_san_safe(5)
NAME
st_san_safe - determine whether access to tape device special files without the no-rewind-on-close option is allowed (OBSOLETED)
VALUES
Failsafe
Default
Allowed values
Recommended values
or
DESCRIPTION
Note: this tunable is obsoleted and has been renamed to beginning with release HP-UX 11i v3.
This tunable notifies the tape driver whether it should allow access to device special files without the no-rewind-on-close option. When
this tunable is on the tape driver will fail any open on a tape device special file without the no-rewind-on-close option (that is, or with
a status of
The tunable allows the safe sharing of tape devices in SAN tape backup solution configurations. The disabling of device special files
without no-rewind-on-close in a SAN tape backup solution configuration prevents the accidental sending of a rewind command on close from
HP-UX systems via standard tape commands like which would corrupt a backup in process.
Who Is Expected to Change This Tunable?
Anyone.
Restrictions on Changing
Changes to this tunable take effect immediately.
When Should the Tunable Be Turned On?
This tunable should be turned on if the system is going to be used in a SAN tape backup solution configuration.
What Are the Side Effects of Turning the Tunable On?
The tape driver will fail any open to a tape device special file that does not have the no-rewind-on-close option with a status of This
behavior prevents the usage of any tape device special file without the no-rewind-on-close option.
When Should the Tunable Be Turned Off?
This tunable should be turned off if the system is not part of a SAN tape backup solution configuration or the system utilizes will not
function unless it has access to device special files without the no-rewind-on-close option.
What Are the Side Effects of Turning the Tunable Off?
A rewind may be issued from this system accidentally on close possibly corrupting a backup being issued from another system on the SAN.
What Other Tunables Should Be Changed at the Same Time?
None.
WARNINGS
All HP-UX kernel tunable parameters are release specific. This parameter may be removed or have its meaning changed in future releases of
HP-UX.
Installation of optional kernel software, from HP or other vendors, may cause changes to tunable parameter values. After installation,
some tunable parameters may no longer be at the default or recommended values. For information about the effects of installation on tun-
able values, consult the documentation for the kernel software being installed. For information about optional kernel software that was
factory installed on your system, see at
AUTHOR
was developed by Hewlett-Packard.
SEE ALSO
norewind_close_disabled(5), scsi_tape(7), scsimgr_estape(7).
Tunable Kernel Parameters st_san_safe(5)
