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тАО06-11-2001 11:33 AM
тАО06-11-2001 11:33 AM
Thanks.
Solved! Go to Solution.
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тАО06-11-2001 12:46 PM
тАО06-11-2001 12:46 PM
Re: Attaching hot swap disks to standard SCSI
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тАО06-11-2001 01:19 PM
тАО06-11-2001 01:19 PM
Re: Attaching hot swap disks to standard SCSI
dd if=/dev/zero of=/dev/vg??/lvol? bs=512k
would overwrite everything on the lvol with 0's. There have been numberous discussions on this in the forums. Click on the 'search' on the left hand side and type in something like 'wipe disks' or '/dev/zero' or something and you should get a hit.
There is no way to get the disks out of a 12h mounted individually somewhere else.
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тАО06-11-2001 01:24 PM
тАО06-11-2001 01:24 PM
Re: Attaching hot swap disks to standard SCSI
You could use this file and specify the device file for each LUN on the autoraid. Make sure everything is unmounted and 'vgchange -a n /dev/vg??' or 'vgexport /dev/vg??' before you start.
http://forums.itrc.hp.com/cm/QuestionAnswer/1,1150,0x82ad53921f1ad5118fef0090279cd0f9,00.html
http://forums.itrc.hp.com/cm/QuestionAnswer/1,1150,0x99f9a12d6d27d5118fef0090279cd0f9,00.html
http://forums.itrc.hp.com/cm/QuestionAnswer/1,1150,0xbfa1ee3e323bd5118fef0090279cd0f9,00.html
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тАО06-12-2001 12:34 AM
тАО06-12-2001 12:34 AM
Re: Attaching hot swap disks to standard SCSI
But, The disks on the autoraid will not fit into a standard say D disk bay... so if you want to zero the disk it won't be possible. The Autoraid lun spreads over all disks in the autoraid.
You can using mstm expert tools write patterns to individual disks in the autoraid..
You can using the armserver, down a disk and write patterns (arraycfg -d -Z)
or like a real men, you can magnetise a needle and write directly on that disk youself!
PS: standard SCSI is not hot swap, just disk aray components on the front.. ie you can't pull out the cables at the back online.
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тАО06-12-2001 04:53 AM
тАО06-12-2001 04:53 AM
SolutionAn entire set of AutoRaid drives contains copies of the Maps, so if the entire set was installed in another chassies the Data would be accessable.
If you are upgrading the entire Autoraid you should back it up, Format it, and reload on the new drives. OR Lock up you old drives in a Valt as you would with any back up copy.
If you are only ugrading one or two drives at a time you should down the drive and use the diagnostic or the ARMServer commands to write on it.
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тАО06-12-2001 05:57 AM
тАО06-12-2001 05:57 AM
Re: Attaching hot swap disks to standard SCSI
I've tried using Autoraid Disks in a D class hot plug bay and they were'nt recognised.
The labels on the disks are different. yellow/purple SE/Wide.
I've tried on both 12 and 12H?
Later,
Bill
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тАО06-12-2001 09:17 AM
тАО06-12-2001 09:17 AM
Re: Attaching hot swap disks to standard SCSI
The AutoRaid Modules will only work in an AutoRaid. Each Module contains an Ultra Wide SE mechanism which when removed from the module and the module electronics is a normal drive with an SCA connector.
I think The D-series uses Fast Wide Differential Modules only. Same mechanism but different module electronics.
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тАО06-12-2001 11:45 AM
тАО06-12-2001 11:45 AM
Re: Attaching hot swap disks to standard SCSI
If your security folks are like my security folks, then I hear what you are saying. Although the previous posts are all good methods for data erasure, high security demands that the erasure be performed on an objective, possibly sequestered, system. The highest security would not even entertain the idea of returning the disks at all.
I would go with Mr. Inglis on this one, however, it will void your warranty.
One other point. Do your security people know about the NVRAM on both Autoraid controllers?
Sure, the battery can be disconnected and the contents dumped, but just the fact that a cache exists that cannot be independently erased and verified is sometimes a problem.
Good Luck,
Curt
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тАО06-13-2001 02:27 AM
тАО06-13-2001 02:27 AM
Re: Attaching hot swap disks to standard SCSI
But that's stetching security a bit much!!
What have you got stored on this thing!
Honestly though, delete all luns, create a maximum sized lun and just dd if dev zero over it until the autoraid is full.
Your data will be gone.. I would imaging enven hp labs couldn't get it back.
Later,
Bill