10 More Discussions You Might Find Interesting
1. Solaris
Hi,
I was wondering if any Solaris fellow out there has dealt with running Solaris 11 x86 on Local Zones for Oracle RAC (which may or may not be relevant to issue), running on HP gen h/w. Every so often could be weeks between issues or some times days, there will be a memory corruption and db... (2 Replies)
Discussion started by: crossmypath
2 Replies
2. UNIX for Beginners Questions & Answers
I am in the market looking to purchase a new E950 server and I am trying to decide between using local SSD drives or SSD based SAN. The application that will be running on this server is read-intensive so I am looking for the most optimal configuration to support this application. There are no... (2 Replies)
Discussion started by: ikx
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3. Solaris
My understanding is that Oracle DB licensing is based on number of cores etc. If you use virtual machines (e.g.ldoms) you need to partition it properly otherwise, in theory you have to pay based on the host machine.
Can anyone confirm I'm right here? And explain it in bit more detail (i.e.... (8 Replies)
Discussion started by: psychocandy
8 Replies
4. AIX
Hi Folks,
I am facing an issue with the performance.
P4 with 1 processor and 16 GB RAM and SAN HDD = Oracle report takes 25 minutes
P5 with 2 processors and 16 GB RAM internall HDD with LPAR = Oracle Report takes 1 hour 15 minutes ( please note I have assigned all the max processors and... (7 Replies)
Discussion started by: filosophizer
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5. Emergency UNIX and Linux Support
Setup:
Multiple Virtual Machines running OEL5 / Oracle RDBMS 11.2
OVM 2 / Xen 3.4.0 Cluster consisting of 3 Machines
Shared SAN Storage synced with OCFS2
SAN connected with 4GB FC on 4 Paths per LUN
SAN target are 2 EMC Clariion mirroring each other
The problems we're facing are that... (6 Replies)
Discussion started by: pludi
6 Replies
6. Solaris
Does any one has idea about when Ldoms2.0 is gonna be available for download? (1 Reply)
Discussion started by: fugitive
1 Replies
7. Solaris
Hi,
We are moving the RMAN oracle backup to tape on daily basis.After they went for SAN change in the solaris server , we started receiveing ora-600 errors and backup is getting fails.
I am from Oracle DBA team.I need to know whether any command for check SAN change or root cause for this... (2 Replies)
Discussion started by: nokiae63
2 Replies
8. Shell Programming and Scripting
I want to use Perl to connect to a remote Oracle DB
I have no oracle installation on my server (and dont plan on installing one) I am using solaris 9 on x86 server.
Is this possible?
I basically want to run some basic sql queries on the remote oracle db which I have access to using perl on my... (0 Replies)
Discussion started by: frustrated1
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9. Solaris
Hi everyone,
I wonder if I can canvas any opinions or thoughts (good or bad) on SAN attaching a SUN V880/490 to an EMC Clarion SAN?
At the moment the 880 is using 12 internal FC-AL disks as a db server and seems to be doing a pretty good job. It is not I/O, CPU or Memory constrained and the... (2 Replies)
Discussion started by: si_linux
2 Replies
10. Solaris
Hi:
I am in the process of configuring the SAN for Solaris to host 6 oracle 9i databases. We have 30 -146 GB disks stiped with RAID 10 for SAN. Of which 11 are dedicated for databsaes related things. Then we have 2 v880 Sun Servers with 16 -73 GB disks and 24 GB memory.
The questions... (1 Reply)
Discussion started by: oracle_dba
1 Replies
st_ats_enabled(5) OBSOLETED st_ats_enabled(5)
NAME
st_ats_enabled - determine whether to reserve a tape device on open (OBSOLETED)
VALUES
Default
Allowed values
or
Recommended values
DESCRIPTION
Note: this tunable is obsoleted and has been renamed to beginning with release HP-UX 11i v3.
This tunable notifies the stape or estape driver whether it needs to reserve a tape device on open and subsequently release it on close.
When this tunable is on the stape or estape driver will attempt to reserve any tape device on open. The driver has a few tape devices
flagged as suitable devices for this functionality including DLT 8000, DLT 7000, STK 9840, HP Ultrium, and others. DDS drives are not
flagged for this functionality.
The tunable allows the safe sharing of tape devices in multinode configurations like MC/ServiceGuard's Advanced Tape Sharing. The auto-
matic reserve and release protects the tape device from being accessed from multiple nodes which would corrupt a backup. If the reserve
portion of the stape or estape driver's open routine fails, a status of is returned.
Who Is Expected to Change This Tunable?
Anyone.
Restrictions on Changing
Changes to this tunable take effect immediately and are used during the next open or close.
When Should the Tunable Be Turned On?
This tunable should be turned on if the system will be used in an MC/ServiceGuard Advanced Tape Sharing configuration or the user wants the
stape or estape driver to use automatic reserve or release on open and close for multinode manageability.
What Are the Side Effects of Turning the Tunable On?
A reserve is sent to the tape device by the stape or estape driver on open and a release is sent on close. No other initiator or HBA will
be able to access the tape device while it is opened on another initiator or HBA.
When Should the Tunable Be Turned Off?
This tunable should be turned off for any SAN tape sharing solution configuration other than ATS. Most multinode backup applications (for
example, Omniback) manage device reservation themselves and any interference by the stape or estape driver may produce problems. This tun-
able should also be turned off for any multiplatform SAN configuration to keep tape access across platforms more uniform.
What Are the Side Effects of Turning the Tunable Off?
Unauthorized access from another initiator might interfere with any current tape operation.
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 HP.
SEE ALSO
st_ats_enable(5), scsi_tape(7), scsimgr_estape(7).
Tunable Kernel Parameters st_ats_enabled(5)
