Help! Need boot manager able to boot to non-BIOS controller drives.

[Arno Wagner]

I'll read that article when I get home - curious, though, DOES a
concatenated drive contain any info other than the usual compliment
of partitioning and user data, that would keep it from working
as a single drive plugged into a non-raid controller?

The drive will work, but the drive would miss part of the logical
structure, i.e. if it is the first drive you might be able to
access part of the original data, on the other drives you would not
even have the partition information.

This, assuming that I use each drive singly, and don't merge
(concatenate) drives together?

It is just the logical structure. The drive does not care. It just
holds a sequence of sectors. But these hold partition information,
filesystem information and data.

Arno

 

[Folkert Rienstra]

I don't think you understand what JBOD is.

No?
"JBOD is basically linear appening of drives of possibly different sizes"

You know what I think? That you didn't read the whole thread. That's what I think.

JBOD _is_ individual disks.

Nope, but so many confuse it for that that if you see mentioning of a JBOD
cabinet it usually means a SCSI multidrive cabinet without a controller of
any kind.

(Just Big Ol' Disk).

As if that explains anything.

You are thinking of RAID-0 in which data is striped across multiple spindles.

You think so. You know what I think?

*may* be a bottleneck

50MB/s with 2 drives simultaniously is not bad at all.

Given that most drives include some amount of cache memory, and accesses
from cache memory on the drive will transit the serial ATA connection at
interface speed (1.5/3Gbps), the interface speed does matter for some
workloads independent of the speed at which data can be retrieved from
the platter (which is considerably less than the interface speed).

And what
"workloads independent of the speed at which data can be retrieved from the platter"
would that be?