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тАО05-30-2005 02:35 AM
тАО05-30-2005 02:35 AM
I must to recreate the /etc/lvmtab, but when I run vgscan the devices order is changed.
Original lvmtab:
/dev/vgRAID9
/dev/dsk/c7t1d1
/dev/dsk/c4t1d1
lvmtab after vgscan -a -p -v :
/dev/vgRAID9
/dev/dsk/c4t1d1
/dev/dsk/c7t1d1
This change in the devices order can cause loss of data? or this order doesnt matters?
Original lvmtab:
/dev/vgRAID9
/dev/dsk/c7t1d1
/dev/dsk/c4t1d1
lvmtab after vgscan -a -p -v :
/dev/vgRAID9
/dev/dsk/c4t1d1
/dev/dsk/c7t1d1
This change in the devices order can cause loss of data? or this order doesnt matters?
Solved! Go to Solution.
2 REPLIES 2
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тАО05-30-2005 03:05 AM
тАО05-30-2005 03:05 AM
Solution
Sergio,
most likely c7t1d1 is an alternate link to the same LUN. You can verify by running
vgdisplay -v vgRAID9
If c7t1d1 is an alternate link, LVM will use it only if the primary link fails. You can make it the primary by removing the current primary link and re-adding it:
vgreduce vgRAID9 /dev/dsk/c4t1d1
vgextend vgRAID9 /dev/dsk/c4t1d1
the subsequent vgdisplay -v vgRADI9 would display c4t1d1 as an alternate link to c7t1d1.
Regards
Bernhard
most likely c7t1d1 is an alternate link to the same LUN. You can verify by running
vgdisplay -v vgRAID9
If c7t1d1 is an alternate link, LVM will use it only if the primary link fails. You can make it the primary by removing the current primary link and re-adding it:
vgreduce vgRAID9 /dev/dsk/c4t1d1
vgextend vgRAID9 /dev/dsk/c4t1d1
the subsequent vgdisplay -v vgRADI9 would display c4t1d1 as an alternate link to c7t1d1.
Regards
Bernhard
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тАО05-30-2005 09:10 AM
тАО05-30-2005 09:10 AM
Re: vgscan - rebuild lvmtab
The devices order doesnt matter and dont cause any loss of data, it's just an alternate link name.
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