Re: looking at 3ware Escalade 7000-2

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Rob McGee wrote:

Hi all,

In this post before I was on this list:
 https://listman.redhat.com/pipermail/ataraid-list/2002-September/001190.html
Samuel Flory said:
 ... On the downside it's not as full featured as more the mature raid
 controllers (no splitting arrays into logical device) ...
and I'm wondering what he meant by that.

We have 2 drives which we want to use as a RAID1 mirror array. If we get
the 3ware Escalade 7000-2, will we be stuck with using a single
partition for everything? That sounds terribly inconvenient.




Logical device != partition What I mean is you can't divide an array into multiple logical drive/devices. Thus if you wanted to have 2 different logical drives. You be forced to create 4 different arrays, and lose an additional drive to parity.


A 3ware array is mapped to a single scsi device (example /dev/sda). The scsi device can be divided up into partitions normally with fdisk, or your install.

--
There is no such thing as obsolete hardware.
Merely hardware that other people don't want.
(The Second Rule of Hardware Acquisition)
Sam Flory  <sflory@xxxxxxxxxxxx>







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