Lucent Technologies 585-210-940 User Manual
Introduction to Disk Mirroring
CentreVu CMS Release 3 Version 8 Disk-Mirrored Systems
How CMS implements disk mirroring
5
How CMS implements disk mirroring
1
A nonmirrored, CMS system with
Solstice DiskSuite uses it to create a
single metadevice, named d19, containing all the disk partitions used to
store CMS data. For example:
store CMS data. For example:
To implement disk mirroring, a metadevice d20 is created as a duplicate
of d19, and the two metadevices are configured as submirrors of d21, as
shown in the following example:
of d19, and the two metadevices are configured as submirrors of d21, as
shown in the following example:
d19
/cms
. . .
c0t0d0s3
c0t1d0s1
(disk n)
d19
/cms
. . .
c0t0d0s3
c0t2d0s1
(disk n)
d20
d21
c0t1d0s3
c0t3d0s1
(disk n)
. . .