05-20-2010
How do you ufsrestore the fast way?
hi, on my sol9 box i create my backup using the below command:
/usr/sbin/ufsdump 0uf /dev/rmt/0n /u1
/usr/sbin/ufsdump 0uf /dev/rmt/0n /u2
/usr/sbin/ufsdump 0uf /dev/rmt/0n /u3
/usr/sbin/ufsdump 0uf /dev/rmt/0n /u4
now on the new sol10 box, to restore i use this commands:
cd /u1
/usr/sbin/ufsrestore rfsvy /dev/rmt/0 1
rm /u1/restoresymtable
cd /u2
/usr/sbin/ufsrestore rfsvy /dev/rmt/0 2
rm /u2/restoresymtable
cd /u3
/usr/sbin/ufsrestore rfsvy /dev/rmt/0 3
rm /u3/restoresymtable
cd /u4
/usr/sbin/ufsrestore rfsvy /dev/rmt/0 4
rm /u4/restoresymtable
the reason i do the above restore commands like that is because i don't have enough space plus ufsrestore only does a relative restore therefore i want it to change to the actual destination directory before restoring.
the directories have different sizes:
/u1 - 35GB
/u2 - 48GB
/u3 - 97GB
/u4 - 150GB
/u1 contains the Oracle binary executables (and maybe some other Oracle related files) while the other directories contain data.
my concern is, why is /u1 taking so long to restore? in fact, /u4 restored in less than 30 minutes while /u1 is taking far longer than that! am i using the wrong restore options that is causing this?
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LEARN ABOUT OSX
mkdevmaps
mkdevmaps(1M) System Administration Commands mkdevmaps(1M)
NAME
mkdevmaps - make device_maps entries
SYNOPSIS
/usr/sbin/mkdevmaps
DESCRIPTION
The mkdevmaps command writes to standard out a set of device_maps(4) entries describing the system's frame buffer, audio, and removable
media devices.
The mkdevmaps command is used by the init.d(4) scripts to create or update the /etc/security/device_maps file.
Entries are generated based on the device special files found in /dev. For the different categories of devices, the mkdevmaps command
checks for the following files under /dev:
audio /dev/audio, /dev/audioctl, /dev/sound/...
tape /dev/rst*, /dev/nrst*, /dev/rmt/...
floppy /dev/diskette, /dev/fd*, /dev/rdiskette, /dev/rfd*
removable disk /dev/dsk/c0t?d0s?, /dev/rdsk/c0t?d0s?
frame buffer /dev/fb
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWcsu |
+-----------------------------+-----------------------------+
|Interface Stability |Obsolete |
+-----------------------------+-----------------------------+
SEE ALSO
allocate(1), bsmconv(1M), attributes(5)
NOTES
mkdevmaps might not be supported in a future release of the Solaris operating system.
SunOS 5.10 8 Oct 2003 mkdevmaps(1M)