The lustre topology is simple , each ost has the same size of 1G
/- ost1(sdb1)
client - mds(mgs,mdt) - ost2(sdb1)
\- ost3(sdb1)
Output of "lctl dl" on mds
[EMAIL PROTECTED] ~]# lctl dl
1 UP mgc [EMAIL PROTECTED] c603fed3-3f71-89a3-ab80-84563a5190f5 5
2 UP mdt MDS MDS_uuid 3
3 UP lov pogo-mdtlov pogo-mdtlov_UUID 4
4 UP mds pogo-MDT0000 pogo-MDT0000_UUID 5
5 UP osc pogo-OST0000-osc pogo-mdtlov_UUID 5
6 UP osc pogo-OST0001-osc pogo-mdtlov_UUID 5
7 UP osc pogo-OST0002-osc pogo-mdtlov_UUID 5
Output of "df -h /test" on client
[EMAIL PROTECTED] ~]# df -h /test
Filesystem Size Used Avail Use% Mounted on
[EMAIL PROTECTED]:/pogo 2.8G 153M 2.5G 6% /test
Now I add a failover pair of sdb2(ost1) and sdb1(ost2).
ost1: mkfs.lustre --fsname=pogo --ost --failnode=ost2 [EMAIL PROTECTED]
/dev/sdb2
after i add the failover pair
Output of "lctl dl" on mds:
[EMAIL PROTECTED] ~]# lctl dl
1 UP mgc [EMAIL PROTECTED] c603fed3-3f71-89a3-ab80-84563a5190f5 5
2 UP mdt MDS MDS_uuid 3
3 UP lov pogo-mdtlov pogo-mdtlov_UUID 4
4 UP mds pogo-MDT0000 pogo-MDT0000_UUID 5
5 UP osc pogo-OST0000-osc pogo-mdtlov_UUID 5
6 UP osc pogo-OST0001-osc pogo-mdtlov_UUID 5
7 UP osc pogo-OST0002-osc pogo-mdtlov_UUID 5
8 UP osc pogo-OST0003-osc pogo-mdtlov_UUID 5
Output of "df -h /test" on client:
[EMAIL PROTECTED] ~]# df -h /test
Filesystem Size Used Avail Use% Mounted on
[EMAIL PROTECTED]:/pogo 3.7G 170M 3.3G 5% /test
So the question: Does it count 1 ost size of a failover pair into lov or
2 ost size?
Then I umount sdb1 on ost2 ,the /test direcotry on client kust hanged.
The following message appear on ost2
Lustre: 3417:0:(lib-move.c:1644:lnet_parse_put()) Dropping PUT from
[EMAIL PROTECTED] portal 7 match 667 offset 0 length 128: 2
Lustre: 3416:0:(lib-move.c:1644:lnet_parse_put()) Dropping PUT from
[EMAIL PROTECTED] portal 28 match 670 offset 0 length 128: 2
I just follow the doc of mountconf. Plz let me know which step is wrong
, thanks in advance.
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