Device Block Size

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2 total messages Started by Jim_Laredo Mon, 28 Dec 1992 06:02

#1313

Author: Jim_Laredo
Date: Mon, 28 Dec 1992 06:02

14 lines
828 bytes

I installed the 1.23GB HD, and found that it came with a device block
size of 512Bytes. The original Seagate was formated with a 1024Bytes
block size.

Do you have any idea what the performance impact is? Should I try to
reformat the disk to get a block size of 1024Bytes?


How hard is to reformat the HD to set the block size to 1024, can I do it
or is it a manufacturer's job?


thanks in advance,
Jim.

Re: Device Block Size

#1319

Author: David Leon
Date: Tue, 29 Dec 1992 15:38

24 lines
1393 bytes

In article <IfDmIJD0Bwx5I1_r4u@transarc.com> Jim_Laredo@transarc.com writes:
>I installed the 1.23GB HD, and found that it came with a device block
>size of 512Bytes. The original Seagate was formated with a 1024Bytes
>block size.
>
>Do you have any idea what the performance impact is? Should I try to
>reformat the disk to get a block size of 1024Bytes?
>
>
>How hard is to reformat the HD to set the block size to 1024, can I do it
>or is it a manufacturer's job?
>
>
>thanks in advance,
>Jim.

Do it!  When I refeormatted my drive from 512 to 1024 byte sectors, I gained
about 15% extra space and about 2x faster speed up (using the speedometer
program).  You will need the scsitools available on sonata (sense and one
other).  Be careful, as I irreparably damaged one drive by using the GUI
version of the program without first saving the sense file.

David L. Leon
dleon@seas.smu.edu

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