Re: Slightly OT: 10g shared raw volumes: Is there a "best" partition type in Linux for raw partitions used for CRS objects

I'm not really sure there IS a good partition type that will absolutely make sure some overeager sysadmin doesn't destroy it. You're safe with a type 83 from a mounting standpoint, as mount will look for a valid type superblock and not finding one, cheerfully tell the sysadmin where he can stick his superblock.

Swap seems like not as good of an idea, since a sysadmin might think "ah, we need more swap" and run mkswap against it.

The best way, I think, would be to replace mkfs or mkswap with a shell script "echo "Do not run mkfs/mkswap against partitions /dev/blah and /dev/blah2! If this is not what you were going to mkfs, run mkfs.real"

If they still whack it then, death's too good for them.

Thanks,
Matt

--
Matthew Zito
GridApp Systems
Email: mzito_at_gridapp.com
Cell: 646-220-3551
Phone: 212-358-8211 x 359
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On Jul 11, 2004, at 3:28 PM, Mark W. Farnham wrote:



> So assume for a moment there is no alternative for the CRS disk and 

> voting

> disk other than /sbin/fdisk configured raw on a certain Linux 

> combination.

>

> I've gotten a suggestion that type "swap" (carefully *NOT* really 

> configured

> as used swap at startup) would be a good choice, since any inadvertant

> attempt to mount the device will be met with a polite slap in the face

> instead of possibly mounting the raw acreage and having bad things take

> place on the CRS space.

>

> Any comments?

>

> I'm guessing that the type really won't affect i/o performance at all, 

> since

> it will be used direct, being raw.

>

> mwf

>

>

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