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Using 3PAR SAS disks elsewhere

PDP-Fan
Valued Contributor

Using 3PAR SAS disks elsewhere

I got a HP 3PAR 7200 system with lots of disks and SSD's... Since we don't need the 3PAR, I thought it would be nice to use the SAS disks/SSD for other uses.

It turned out that this is not so easy. I got the disks recognised by Windows (through a LSI SAS HBA) but I can not initialze them. Windows tells me about an I/O error on all (63) disks.
I also attached one disk to a PC with LSI RAID controller and made a JBOD. -> error

I noticed that all disks have a vendor code "smrt stor" ... seems that 3PAR disks have a customized firmware.

Does someone know how to solve the problem? If we can not use the disks in other servers than 3PAR, they are pretty useless for us.

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"If it seems illogical... you just don't have enough information"
7 REPLIES
yapkl
Trusted Contributor

Re: Using 3PAR SAS disks elsewhere

3PAR disks are meant to be used in a 3PAR. Why don't you need/want the 3PAR anymore?

Best Regards,

yapkl

Note: The opinions & comments above are my personal opinions, not of Hewlett Packard Enterprise
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Re: Using 3PAR SAS disks elsewhere

Hello,

you have to low-level format to 512 Bytes. 3Par uses 520.....

Mathias

PDP-Fan
Valued Contributor

Re: Using 3PAR SAS disks elsewhere

We got this 3PAR system back from a customer at a very low price and we took it because we wanted to use the drives for other things. We have no need for a complete 3PAR system. But it turns out this is not so easy...

At the end we will probably sell the 3PAR as it is if we can not reformat the disks.

***********************************************
"If it seems illogical... you just don't have enough information"
PDP-Fan
Valued Contributor

Re: Using 3PAR SAS disks elsewhere

520 byte blocks.... I hate this proprietary politics! Or is there a technical benefit?

That reminds me of IBM systems long time ago. I remember how we reformatted standard 512 byte disks to 520 byte using a Solaris/SUN system. Maybe that works the other way too.

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"If it seems illogical... you just don't have enough information"
Dennis Handly
Acclaimed Contributor

Re: Using 3PAR SAS disks elsewhere

> 520 byte blocks Or is there a technical benefit?

 

This enables T10 DIF CRC error checking.  Otherwise it does no good to have RAID protection of bad data.

PDP-Fan
Valued Contributor

Re: Using 3PAR SAS disks elsewhere

I think we solved our problem. There are Linux utilities that can re-format the drives to 512k blocks. Erasing all data of course but we wanted to wipe them anyway.

***********************************************
"If it seems illogical... you just don't have enough information"
Cathy O'Malley
Occasional Advisor

Re: Using 3PAR SAS disks elsewhere

What Liniux Utilites are you referring to?