vinum sd length and stripesize questions
freebsd_daemon
free.bsd at gmx.net
Wed Mar 24 08:52:34 PST 2004
Dear list
I have three partition of the same size on different disks (ad0, ad1 and
ad2). In disklabel they show up as
e: 2097152 720896 4.2BSD 2048 16384 89 # (Cyl. 715*- 2795*)
(f: ... for ad1 and ad2)
In df they show up as:
Filesystem 1K-blocks Used Avail Capacity Mounted on
/dev/ad0s1e 1032142 2 949570 0% /data0
/dev/ad1s1f 1032142 2 949570 0% /data1
/dev/ad2s1f 1032142 2 949570 0% /data2
MY FIRST QUESTION IS:
In the vinum configuration's sd length attribute am I to use the df 1K-block
or the df Avail size? (e.g. sd length 1032142 drive ... or sd lenth 949570
drive ...). I am asking because Lucas writes in AbsoluteBSD df Avail, but I
used accidently 1k-block. I don't want to keep on installing and configuring
and later on run into trouble. I cross checked on Lehey's web page but did not
find any information.
MY SECOND QUESTION IS:
vinum(8) stated:
"org organization [stripesize ]
[stipesize] For type raid5, it specifies the size of a group. A group is a
portion of a plex which stores the parity bits all in the same subdisk. It
must be a factor of the plex size (in other words, the result of dividing the
plex size by the stripe size must be an integer), and it must be a multiple of
a disk sector (512 bytes)."
I understand this as stripesize has to devide sd length by ) AND 512k has to
devide stripesize by 0 is that true?
TIA
zheyu
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