Software RAID-1 - Swap partition
John Oxley
john at yoafrica.com
Fri Jul 1 06:49:03 GMT 2005
Hi,
I followed http://people.freebsd.org/~rse/mirror/ to create a software
RAID mirror. I have two 75G drives in the machine. I allocated 74G to
the filesystem on each drive and 1 G to swap. When I blanked ad1 and
created ad1s1, I didn't notice that it had taken up the whole of the
drive. Can I shrink the mirror partition and have two swap partitions,
or if that is not possible, how would I go about creating a "mirrored"
swap partition?
# bsdlabel /dev/mirror/gm0s1
# /dev/mirror/gm0s1:
8 partitions:
# size offset fstype [fsize bsize bps/cpg]
a: 524288 0 4.2BSD 2048 16384 32776
c: 156296322 0 unused 0 0
d: 1048576 524288 4.2BSD 2048 16384 8
e: 20971520 1572864 4.2BSD 2048 16384 28552
f: 132643453 22544384 4.2BSD 2048 16384 28552
# gmirror list
Geom name: gm0
State: COMPLETE
Components: 2
Balance: round-robin
Slice: 4096
Flags: NONE
GenID: 0
SyncID: 1
ID: 2442074130
Providers:
1. Name: mirror/gm0
Mediasize: 80026361344 (75G)
Sectorsize: 512
Mode: r4w4e2
Consumers:
1. Name: ad0
Mediasize: 80026361856 (75G)
Sectorsize: 512
Mode: r1w1e1
State: ACTIVE
Priority: 0
Flags: NONE
GenID: 0
SyncID: 1
ID: 707256281
2. Name: ad1
Mediasize: 80026361856 (75G)
Sectorsize: 512
Mode: r1w1e1
State: ACTIVE
Priority: 0
Flags: NONE
GenID: 0
SyncID: 1
ID: 655505428
--
John Oxley
Systems Administrator
Yo!Africa
E-Mail: john at yoafrica.com
Tel: +263 4 858404
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