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<DIV><SPAN class=990521200-13022007>I'm trying to measure the usage of journal
blocks created within a GFS disk. I'm running bonnie++ small file test hoping to
overwhelm the journal with lot of entries to measure its peak usage. I saw
gfs_tool prints jindex data structure. Can anyone help to interpret its
output?</SPAN></DIV>
<DIV><SPAN class=990521200-13022007></SPAN> </DIV>
<DIV><SPAN class=990521200-13022007>Also I like to hear from anyone who went
through similar exercise of understanding GFS journal usage in an active
system.</SPAN></DIV>
<DIV><SPAN class=990521200-13022007></SPAN> </DIV>
<DIV><SPAN class=990521200-13022007>thanks,</SPAN></DIV>
<DIV><SPAN class=990521200-13022007>Sridharan</SPAN></DIV>
<DIV><SPAN class=990521200-13022007></SPAN> </DIV>
<DIV><SPAN class=990521200-13022007>[root@cfs1 cluster]$ gfs_tool jindex
/mnt/gfs2<BR> mh_magic = 0x01161970<BR> mh_type = 4<BR>
mh_generation = 0<BR> mh_format = 400<BR> mh_incarn = 0<BR>
no_formal_ino = 21<BR> no_addr = 21<BR> di_mode = 0600<BR>
di_uid = 0<BR> di_gid = 0<BR> di_nlink = 1<BR> di_size =
240<BR> di_blocks = 1<BR> di_atime = 1171308008<BR> di_mtime =
1171308008<BR> di_ctime = 1171308008<BR> di_major = 0<BR>
di_minor = 0<BR> di_rgrp = 0<BR> di_goal_rgrp = 0<BR>
di_goal_dblk = 0<BR> di_goal_mblk = 0<BR> di_flags =
0x00000001<BR> di_payload_format = 1000<BR> di_type = 1<BR>
di_height = 0<BR> di_incarn = 0<BR> di_pad = 0<BR> di_depth =
0<BR> di_entries = 0<BR> no_formal_ino = 0<BR> no_addr =
0<BR> di_eattr = 0<BR> di_reserved =<BR>...</SPAN></DIV>
<DIV><SPAN class=990521200-13022007></SPAN> </DIV>
<DIV><SPAN class=990521200-13022007>Journal 0:</SPAN></DIV>
<DIV> </DIV>
<DIV><SPAN class=990521200-13022007> ji_addr = 61728<BR> ji_nsegment
= 63<BR> ji_pad = 0<BR> ji_reserved =<BR>00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 <BR>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 <BR>00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 <BR>00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 <BR></SPAN></DIV></BODY></HTML>