Unknown V11.00 Parameters.

[Russ Hancock_1]

Parameter Name Our Machine Another HPv11
---------------- ---------- ------

disksort_seconds 0 Not listed
scsi_max_qdepth 8 Not listed
semmsi_override 2048 Not listed
st_ats_enabled 0 Not listed
vx_maxlink 32767 Not listed

[Steve Steel]

Hi

This is a problem with patching

Example

st_ats_enabled came from [PHKL_22161/PACHRDME/English]


Check the equivalent patches.



Steve Steel

[Russ Hancock_1]

Sorry, I hit submit a bit early...

I've rebuilt our V11 server and applied the Sept 2001 General release bundle and these kernal parameters have appeared.

Checking on another V11 machine I found them not listed ( hence the 'notlisted' lines)

What are they?
Can they be got rid of? How?
Could they be the reason for poor IO performance on this machine?

Thanks in advance.
Russ

[harry d brown jr]

Russ,

I'd like to suggest that you install Dec 2001 bundled patches, then use the custom patch manager for other outstanding patches. You could do some things to "remove" some of the symbols, but it's my belief that this will just make your system unstable in future upgrades.

When you said you rebuilt your machine with 11.00, did you perform a cold install?

live free or die
harry

[Russ Hancock_1]

Harry,
Yes it's a fresh install as the root disk expired last weekend....

Is the Dec2001 set downloadable?

Cheers
Russ.

[Russ Hancock_1]

Harry,

Yes this is a fresh install as the root disk expired last weekend !!

Is the Dec2001 set downloadable??

Russ.

[harry d brown jr]

Russ,

Actually, March 2002 is ready, here is the list:

http://us-support2.external.hp.com/xsw/bin/doc.pl/screen=xswReleaseIndex

http://www.software.hp.com/SUPPORT_PLUS/faq.html#cq-a3

live free or die
harry

[Russ Hancock_1]

Is it possible to downlaod the entire Mar2002 in one hit? This link only appears to ssend me to individual patches? Unless I'm doing something wrong?

[Patrick Wallek]

Go to this link:

http://www.software.hp.com/cgi-bin/swdepot_parser.cgi/cgi/try.pl?productNumber=QUALITYPACK&date=

Select your version of HP-UX from the pull-down menu, fill out the form, and you will then be able to download.

Note that the full 11.0 QPAK is about 280MB to download.

[Bill Hassell]

You wrote:

> What are they?
> Can they be got rid of? How?
> Could they be the reason for poor IO performance on this machine?

These are new parameters that have been introduced through various patches and releases. No, they cannot be removed and you don't want to remove them. And no, they will not cause any performance issues.

There is no simple solution for I/O performance issues. First, I am assuming that by I/O performance, you are referring to disk I/O specifically and not LAN or tape or terminals, etc.

If so, there are dozens of patches for everything from SCSI and Fibre channel to LVM and VxFS that should be added. If you are recreating your root filesystem, there is a tool that would have made this a trivial task: Ignite/UX, specifically the make_tape_recovery program. You can download this free application from software.hp.com.

As far as patches, since you are reinstalling your system, use your Support Plus CDROM from Dec 2001 or later to update all the Hardware Critical and General Release patches. If you cannot find your SupportPlus CD or do not have a subscription service, download the (hundreds of megs) image from the same site at:

http://www.software.hp.com/SUPPORT_PLUS/

Once all the patches are updated, you can restore from your backup tapes. HOWEVER, do not restore anything from /dev, /usr/lib or from /var/adm/sw (and other directories that may be revision dependent).

[Russ Hancock_1]

I think we've discovered a bug in the site!!!!