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moving data from FS from one storage to FS in another storage

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Operating Systems AIX moving data from FS from one storage to FS in another storage
# 1  
Old 11-09-2010
Question moving data from FS from one storage to FS in another storage
Hello,
I need to move 5TB of data from DS8100 to DS3400 storage.This 5TB of data is spread across 5 file system and mounted on one AIX server.
Same file system structure is created on DS3400 storage and mounted on the same AIX server.

Can anyone provide the best way of moving data from one FS to other FS with minimum time with transfer rate and time.
# 2  
Old 11-09-2010
Hi,
if your primary goal is not to interrupt the production you could create an AIX mirror with old and new devices and run the sync in the background. Afterwards you can remove the old devices from the mirror.
This is of course not the fastest way, but probably has the least impact to your production.
# 3  
Old 11-09-2010
Thanks.
Yes the servers in prodution. As i'm new to this topic, can you provide the steps to transfer the data.
# 4  
Old 11-09-2010
The steps you have to do are:

extendvg
mirrorvg
sync data
unmirrorvg
reducevg

Easiest way is to use smit.
Please refer to the IBM documentation and make sure you understand what you do.
This User Gave Thanks to firefox111 For This Post:
kmvinay
# 5  
Old 11-09-2010
Thanks for the help. Will check with IBM doc. Smilie
# 6  
Old 11-09-2010
Hi,

you could just move the disk content one to one ?

Code:
extendvg volumegroup hdisknew
migratepv hdiskold hdisknew
reducevg volumegroup hdiskold

No downtime, impact or anything ...

Regards
zxmaus
# 7  
Old 11-09-2010
I like zxmaus's answer.

Are the five filesystems in the same volume group? migratepv only works within a volume group.

Add the disks from the "new" SAN into the existing volume group.
Run migratepv.
Remove the disks from the "old" SAN.

You do not need to recreate the filesystems before hand on the new disks or SAN.
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