Re: scan persistent dsfs after migrating from legacy to persistent dfs (385 Views)
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Advisor
pranav026
Posts: 19
Registered: ‎07-07-2011
Message 1 of 6 (391 Views)
Accepted Solution

scan persistent dsfs after migrating from legacy to persistent dfs

[ Edited ]

I tried migrating to legacy ddsf to persistent dsf by using following command,

rmsf -L  (Which removes all the instances of the legacy dsf from the system)

Afetr running this command there were no dsfs found in the path /dev/dsk, as rmsf -L removed all the legacy devices.

After this when I ran ioscan -funC disk command, to scan the and list devices, I was not able to see any disk devices. Can some one tell me what went wrong here?

 

 

Regular Advisor
itrc55
Posts: 195
Registered: ‎04-10-2010
Message 2 of 6 (385 Views)

Re: scan persistent dsfs after migrating from legacy to persistent dfs

Hi,

try with

# ioscan -m lun

# ioscan -m lun /dev/disk/diskX

# ioscan -kfnNC disk

Thanks
Advisor
pranav026
Posts: 19
Registered: ‎07-07-2011
Message 3 of 6 (384 Views)

Re: scan persistent dsfs after migrating from legacy to persistent dfs

In HP-UX 11i v3 Persistent DSF Migration Guide, they say that after rmsf -L you won;t be able to list the disk deices. Then how admin can identify the disk devices?

 

Can some one guide me here?

Advisor
pranav026
Posts: 19
Registered: ‎07-07-2011
Message 4 of 6 (383 Views)

Re: scan persistent dsfs after migrating from legacy to persistent dfs

Kudos..!! It worked.

Thanks a ton..

Regular Advisor
itrc55
Posts: 195
Registered: ‎04-10-2010
Message 5 of 6 (376 Views)

Re: scan persistent dsfs after migrating from legacy to persistent dfs

Hi,

please don't forgot the Kudos.

Thanks
Exalted Contributor
Steven E. Protter
Posts: 33,806
Registered: ‎08-15-2002
Message 6 of 6 (358 Views)

Re: scan persistent dsfs after migrating from legacy to persistent dfs

Shalom,

 

Note that DRD guide notes that Legacy I/O must be enabled. This is certain for VxVM boot systems, and a probably for LVM(I have not checked.).

 

Also, there is an Ignite bug I learned about the hard way, with legacy I/O the system was unrecoverable. That was also a VxVM booted system. I don't know what the impact is on an LVM booted system.

 

Migrator be forwarned.

 

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Steven E Protter
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