topic Re: HP Advanced Disk Array in Operating System - HP-UX

HP Advanced Disk Array

Unix Administrator_6 — Fri, 08 Sep 2000 04:18:38 GMT

I added 2 disks to an HP Model 30 AutoRAID Disk Array. Running RAID 5. Ever since I have been getting balancing messages in my syslog.

"Sep 8 00:47:33 hp6 syslog: HP Advanced Disk Array serial number 00000013CBCE: B
alance in progress: Product Revision: HP60: Product ID: C5447A
Sep 8 00:52:35 hp6 syslog: HP Advanced Disk Array serial number 00000013CBCE: B
alance completed: Product Revision: HP60: Product ID: C5447A
Sep 8 00:53:01 hp6 telnetd[3000]: recv: Connection reset by peer
Sep 8 00:55:01 hp6 syslog: HP Advanced Disk Array serial number 00000013CBCE: B
alance in progress: Product Revision: HP60: Product ID: C5447A
Sep 8 00:57:37 hp6 syslog: HP Advanced Disk Array serial number 00000013CBCE: B
alance completed: Product Revision: HP60: Product ID: C5447A "

In Grid Manager, I don't see any errors or problems, everything is up and ok. The lights on the disks are blinking like they should be.

Any suggestions, of what to do or where to look?

Re: HP Advanced Disk Array

Stefan Farrelly — Fri, 08 Sep 2000 06:18:13 GMT

Looks like your array is moving data around in the background from Raid5 to Raid0/1, which is a feature of Autoraids. The only way I believe to stop it is to allocate your entire space on the array to some vg/lvol. That way the array has no spare space left to move data around just becuase it thinks its more efficient for it to be Raid whatever.

Re: HP Advanced Disk Array

Unix Administrator_6 — Fri, 08 Sep 2000 06:22:53 GMT

So is that ok...no big deal, or should I look into it?

Re: HP Advanced Disk Array

Stefan Farrelly — Fri, 08 Sep 2000 06:39:39 GMT

It will be affecting the performance of the array because its moving data around, I would allocate all the space on the array to stop it.

Re: HP Advanced Disk Array

R.Suresh — Fri, 08 Sep 2000 06:39:57 GMT

Hi,
Just look at the mails at the
root login.

Is there any mail related to the
Raid or the hardware problems?

If not,No problem in the Raid activities

Arm-daemon usually sends mail if any
H/W problem.

R.Suresh
r_sures@yahho.com.