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Comments (6)

1 Gobinath commented Permalink

Dear chris_gibson, <div>&nbsp;</div> The notes is very useful. But One doubt. How long it will take for jfs to jfs2 conversion? I tested in one of my test machine. Its running more than 3 hrs. Please let me know. <br /> FYI: I have migrated from 5.3 TL11 to 6.1 TL07 using media. then trying to convert jfs to jfs2. which is running more than 3 hrs. <br /> Thanks in Advance.

2 cggibbo commented Permalink

Hi Gobinath, <div>&nbsp;</div> 3 hours! Something is wrong. It should not take that long. A few minutes at most (based on my experience). <div>&nbsp;</div> Can you send me an email with the output from the command please? You can reach me at cg@gibsonnet.net. <div>&nbsp;</div> Cheers. <div>&nbsp;</div> Chris

3 Gobinath commented Permalink

Dear Chris, <div>&nbsp;</div> Sorry for the delay.... <div>&nbsp;</div> That day i have cancelled the task...I am doing the same today....Its still running more than a hour. Please find the below output. <div>&nbsp;</div> # alt_disk_copy -d "hdisk2 hdisk3" -T ; date <br /> Source boot disk is: hdisk0 <br /> jfs2j2: Current data file /image.data moved to /image.data.jfs2j2.save.7471610. <br /> jfs2j2: Creating new data file (/image.data). <br /> jfs2j2: Converting filesystems in data file (/image.data) from jfs to jfs2. <br /> jfs2j2: Converted data file (/image.data) moved to /tmp/image.data.conv.8716468. <div>&nbsp;</div> jfs2j2: Cleaning up. <br /> jfs2j2: Moving previous data file /image.data.jfs2j2.save.7471610 to IDFILE. <br /> jfs2j2: Successfully completed converting image.data to jfs2. <br /> Checking disk sizes. <br /> Creating cloned rootvg volume group and associated logical volumes. <br /> Creating logical volume alt_hd5 <br /> Creating logical volume alt_hd6 <br /> Creating logical volume alt_hd8 <br /> Creating logical volume alt_hd4 <br /> Creating logical volume alt_hd2 <br /> Creating logical volume alt_hd9var <br /> Creating logical volume alt_hd3 <br /> Creating logical volume alt_hd1 <br /> Creating logical volume alt_locallv <br /> Creating logical volume alt_hd7 <br /> Creating logical volume alt_hd10opt <br /> Creating logical volume alt_lv00 <br /> Creating logical volume alt_hd11admin <br /> Creating logical volume alt_livedump <br /> Creating /alt_inst/ file system. <br /> /alt_inst filesystem not converted. <br /> Small inode extents are already enabled. <br /> Creating /alt_inst/admin file system. <br /> /alt_inst/admin filesystem not converted. <br /> Small inode extents are already enabled. <br /> Creating /alt_inst/home file system. <br /> /alt_inst/home filesystem not converted. <br /> Small inode extents are already enabled. <br /> Creating /alt_inst/local file system. <br /> /alt_inst/local filesystem not converted. <br /> Small inode extents are already enabled. <br /> Creating /alt_inst/opt file system. <br /> /alt_inst/opt filesystem not converted. <br /> Small inode extents are already enabled. <br /> Creating /alt_inst/tmp file system. <br /> /alt_inst/tmp filesystem not converted. <br /> Small inode extents are already enabled. <br /> Creating /alt_inst/usr file system. <br /> /alt_inst/usr filesystem not converted. <br /> Small inode extents are already enabled. <br /> Creating /alt_inst/var file system. <br /> /alt_inst/var filesystem not converted. <br /> Small inode extents are already enabled. <br /> Creating /alt_inst/var/adm/ras/livedump file system. <br /> /alt_inst/var/adm/ras/livedump filesystem not converted. <br /> Small inode extents are already enabled. <br /> Generating a list of files <br /> for backup and restore into the alternate file system... <div>&nbsp;</div>

4 cggibbo commented Permalink

Hi, are sure it's still running. Do you see disk I/O activity on the system and/or processes associated with alt_disk_copy still running? Just out curiosity, what are your disk queue depths set to? Can you please send me a screen shot from topas/nmon while the process is running. Anything in the AIX error report. <div>&nbsp;</div> Can you send me an email with the output from the command please? <div>&nbsp;</div> You can reach me at cg@gibsonnet.net. <div>&nbsp;</div> Cheers. <div>&nbsp;</div> Chris

5 MikeScheerer commented Permalink

Hi Chris, <div>&nbsp;</div> As you state that the -T switch for the alt_disk_copy was only introduced in AIX 6100-04, would I be correct that this method cannot be used to convert an AIX 5.3 jfs rootvg filesystem to an AIX 5.3 jfs2 filesystem? <div>&nbsp;</div> Presumably my best option to convert an AIX 5.3 rootvg will be to modify the files bosinst.data, image.data and /etc/filesystems manually to reflect JFS2 filesystems with the modified and additional JFS2 stanza's and then perform a mksysb with the -i option (to suppress the mkszfile) which could then be restored and SHOULD create the required JFS2 version of the rootvg? <div>&nbsp;</div> Thanks in anticipation <div>&nbsp;</div> Mike

6 cggibbo commented Permalink

Hi Mike, <div>&nbsp;</div> You are correct. AIX 5.3 doesn't have the tools to convert to JFS2. <div>&nbsp;</div> The approach you mention is exactly what this chap did: <div>&nbsp;</div> http://aixblogs.blogspot.com.au/2009/03/jfs-to-jfs2-conversion-for-rootvg.html <div>&nbsp;</div> Seemed to work for him. However, I'm not endorsing it. As far as I know that method is not supported by IBM. <div>&nbsp;</div> I recommend the steps I included in this recent article: <div>&nbsp;</div> http://www.ibm.com/developerworks/aix/library/au-aix-nimadm/index.html <div>&nbsp;</div> Under this section "Considerations when migrating to AIX 7.1 (or 6.1)" - Do you have JFS file systems in rootvg?. <div>&nbsp;</div> It's a longer process but one that employs known &amp; supported methods. <div>&nbsp;</div> Cheers. <div>&nbsp;</div> Chris

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