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Hi Lustre community,</div>
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<br>
</div>
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I think i messed up my lustre config while setting up my new filesystem. The server version is 2.15.1</div>
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While adding OST's to my new lustre filesystem, I ran into an issue when adding OST0005. After formatting the zpool, I could not mount the OST, it failed with the message below.</div>
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<br>
</div>
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[root@oss6 ~]# mount -t lustre -v lustre/ost1 /mnt/ost1</div>
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arg[0] = /sbin/mount.lustre</div>
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arg[1] = -v</div>
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arg[2] = -o</div>
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arg[3] = rw</div>
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arg[4] = lustre/ost1</div>
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arg[5] = /mnt/ost1</div>
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source = lustre/ost1 (lustre/ost1), target = /mnt/ost1</div>
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options = rw</div>
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checking for existing Lustre data: found</div>
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Writing lustre/ost1 properties</div>
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lustre:mgsnode=192.168.6.1@tcp</div>
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lustre:version=1</div>
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lustre:flags=2</div>
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lustre:index=5</div>
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lustre:fsname=lustre</div>
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lustre:svname=lustre-OST0005</div>
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mounting device lustre/ost1 at /mnt/ost1, flags=0x1000000 options=osd=osd-zfs,mgsnode=192.168.6.1@tcp,update,param=mgsnode=192.168.6.1@tcp,svname=lustre-OST0005,device=lustre/ost1</div>
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mount.lustre: mount -t lustre lustre/ost1 at /mnt/ost1 failed: Input/output error retries left: 0</div>
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mount.lustre: mount lustre/ost1 at /mnt/ost1 failed: Input/output error</div>
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Is the MGS running?</div>
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<br>
</div>
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I could not add this particular server. I added OST0006 without any problem.</div>
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At this point I reconnected the clients and started using the lustre fs again.</div>
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<br>
</div>
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After reinstalling the OS on the server, replacing the network card and cable, I still was unable to add the OST.</div>
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It turned out to be a misconfiguration on the switch, jumbo frames were not enabled on the port used for that server.</div>
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After fixing that, I still could not add this server as OST0005 because i got the message that OST0005 already existed.</div>
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Reformatting with the --replace option with index 5 did not work. I was able to add this server with a new index, so now it is added with index 7 as OST0007.</div>
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<br>
</div>
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At this point I thought everything was fine. All the clients could see all OST's and all servers were being used.</div>
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<br>
</div>
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When I needed to reboot a client, it was no longer able to mount the lustre filesystem. I get the following error.</div>
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<br>
</div>
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# mount -v -t lustre 192.168.6.1@tcp:/lustre /lustre</div>
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arg[0] = /sbin/mount.lustre</div>
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arg[1] = -v</div>
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arg[2] = -o</div>
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arg[3] = rw</div>
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arg[4] = 192.168.6.1@tcp:/lustre</div>
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arg[5] = /lustre</div>
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source = 192.168.6.1@tcp:/lustre (192.168.6.1@tcp:/lustre), target = /lustre</div>
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options(2/4096) = rw</div>
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mounting device 192.168.6.1@tcp:/lustre at /lustre, flags=0x1000000 options=device=192.168.6.1@tcp:/lustre</div>
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mount.lustre: mount -t lustre 192.168.6.1@tcp:/lustre at /lustre failed: Invalid argument retries left: 0</div>
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mount.lustre: mount 192.168.6.1@tcp:/lustre at /lustre failed: Invalid argument</div>
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This may have multiple causes.</div>
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Is 'lustre' the correct filesystem name?</div>
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Are the mount options correct?</div>
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Check the syslog for more info.</div>
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<br>
</div>
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The logs show:</div>
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Aug 27 11:36:09 trinityx kernel: LustreError: 110360:0:(obd_config.c:1557:class_process_config()) no device for: lustre-OST0005-osc-ffff921d73617800</div>
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Aug 27 11:36:09 trinityx kernel: LustreError: 110360:0:(obd_config.c:2029:class_config_llog_handler()) MGC192.168.6.1@tcp: cfg command failed: rc = -22</div>
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Aug 27 11:36:09 trinityx kernel: Lustre: cmd=cf00f 0:lustre-OST0005-osc 1:osc.active=0</div>
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Aug 27 11:36:09 trinityx kernel: LustreError: MGC192.168.6.1@tcp: Configuration from log lustre-client failed from MGS -22. Check client and MGS are on compatible version.</div>
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Aug 27 11:36:09 trinityx kernel: Lustre: Unmounted lustre-client</div>
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Aug 27 11:36:09 trinityx kernel: LustreError: 110343:0:(super25.c:188:lustre_fill_super()) llite: Unable to mount <unknown>: rc = -22</div>
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<br>
</div>
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I tried disabling OST0005 on the MDS, but that also gave an error in the logs.</div>
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# lctl conf_param lustre-OST0005.osc.active=0</div>
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</div>
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[Aug26 17:07] Lustre: Permanently deactivating lustre-OST0005</div>
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[ +0.001950] Lustre: Modifying parameter lustre-OST0005-osc.osc.active in log lustre-client</div>
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[ +0.001193] Lustre: Skipped 1 previous similar message</div>
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[ +7.429669] LustreError: 4158100:0:(obd_config.c:1499:class_process_config()) no device for: lustre-OST0005-osc-MDT0000</div>
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[ +0.001253] LustreError: 4158100:0:(obd_config.c:2001:class_config_llog_handler()) MGC192.168.6.1@tcp: cfg command failed: rc = -22</div>
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[ +0.000829] Lustre: cmd=cf00f 0:lustre-OST0005-osc-MDT0000 1:osc.active=0</div>
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[ +0.001275] LustreError: 60246:0:(mgc_request.c:612:do_requeue()) failed processing log: -22</div>
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<br>
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I am now in the situation that all currently connected clients can use the filesystem, but as soon as I need to reboot them, they cannot reconnect.</div>
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<br>
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Is there a way to fix this, preferably without taking everything offline?</div>
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<br>
</div>
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Thanks in advance,</div>
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Martin Balvers</div>
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<br>
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Aditional info.</div>
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[root@mds ~]# lctl dl</div>
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0 UP osd-zfs MGS-osd MGS-osd_UUID 4</div>
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1 UP mgs MGS MGS 64</div>
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2 UP mgc MGC192.168.6.1@tcp ab5db231-f023-4acb-8896-0cfb93c5ed25 4</div>
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3 UP osd-zfs lustre-MDT0000-osd lustre-MDT0000-osd_UUID 13</div>
<div style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 11pt; color: rgb(0, 0, 0);" class="elementToProof">
4 UP mds MDS MDS_uuid 2</div>
<div style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 11pt; color: rgb(0, 0, 0);" class="elementToProof">
5 UP lod lustre-MDT0000-mdtlov lustre-MDT0000-mdtlov_UUID 3</div>
<div style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 11pt; color: rgb(0, 0, 0);" class="elementToProof">
6 UP mdt lustre-MDT0000 lustre-MDT0000_UUID 94</div>
<div style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 11pt; color: rgb(0, 0, 0);" class="elementToProof">
7 UP mdd lustre-MDD0000 lustre-MDD0000_UUID 3</div>
<div style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 11pt; color: rgb(0, 0, 0);" class="elementToProof">
8 UP qmt lustre-QMT0000 lustre-QMT0000_UUID 3</div>
<div style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 11pt; color: rgb(0, 0, 0);" class="elementToProof">
9 UP osp lustre-OST0000-osc-MDT0000 lustre-MDT0000-mdtlov_UUID 4</div>
<div style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 11pt; color: rgb(0, 0, 0);" class="elementToProof">
10 UP osp lustre-OST0002-osc-MDT0000 lustre-MDT0000-mdtlov_UUID 4</div>
<div style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 11pt; color: rgb(0, 0, 0);" class="elementToProof">
11 UP osp lustre-OST0001-osc-MDT0000 lustre-MDT0000-mdtlov_UUID 4</div>
<div style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 11pt; color: rgb(0, 0, 0);" class="elementToProof">
12 UP osp lustre-OST0003-osc-MDT0000 lustre-MDT0000-mdtlov_UUID 4</div>
<div style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 11pt; color: rgb(0, 0, 0);" class="elementToProof">
13 UP osp lustre-OST0004-osc-MDT0000 lustre-MDT0000-mdtlov_UUID 4</div>
<div style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 11pt; color: rgb(0, 0, 0);" class="elementToProof">
14 UP lwp lustre-MDT0000-lwp-MDT0000 lustre-MDT0000-lwp-MDT0000_UUID 4</div>
<div style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 11pt; color: rgb(0, 0, 0);" class="elementToProof">
15 UP osp lustre-OST0006-osc-MDT0000 lustre-MDT0000-mdtlov_UUID 4</div>
<div style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 11pt; color: rgb(0, 0, 0);" class="elementToProof">
16 UP osp lustre-OST0007-osc-MDT0000 lustre-MDT0000-mdtlov_UUID 4</div>
<div style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 11pt; color: rgb(0, 0, 0);" class="elementToProof">
[root@mds ~]# lctl --device MGS llog_print lustre-client</div>
<div style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 11pt; color: rgb(0, 0, 0);" class="elementToProof">
- { index: 2, event: attach, device: lustre-clilov, type: lov, UUID: lustre-clilov_UUID }</div>
<div style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 11pt; color: rgb(0, 0, 0);" class="elementToProof">
- { index: 3, event: setup, device: lustre-clilov, UUID: }</div>
<div style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 11pt; color: rgb(0, 0, 0);" class="elementToProof">
- { index: 6, event: attach, device: lustre-clilmv, type: lmv, UUID: lustre-clilmv_UUID }</div>
<div style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 11pt; color: rgb(0, 0, 0);" class="elementToProof">
- { index: 7, event: setup, device: lustre-clilmv, UUID: }</div>
<div style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 11pt; color: rgb(0, 0, 0);" class="elementToProof">
- { index: 10, event: add_uuid, nid: 192.168.6.1@tcp(0x20000c0a80601), node: 192.168.6.1@tcp }</div>
<div style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 11pt; color: rgb(0, 0, 0);" class="elementToProof">
- { index: 11, event: attach, device: lustre-MDT0000-mdc, type: mdc, UUID: lustre-clilmv_UUID }</div>
<div style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 11pt; color: rgb(0, 0, 0);" class="elementToProof">
- { index: 12, event: setup, device: lustre-MDT0000-mdc, UUID: lustre-MDT0000_UUID, node: 192.168.6.1@tcp }</div>
<div style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 11pt; color: rgb(0, 0, 0);" class="elementToProof">
- { index: 13, event: add_mdc, device: lustre-clilmv, mdt: lustre-MDT0000_UUID, index: 0, gen: 1, UUID: lustre-MDT0000-mdc_UUID }</div>
<div style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 11pt; color: rgb(0, 0, 0);" class="elementToProof">
- { index: 16, event: new_profile, name: lustre-client, lov: lustre-clilov, lmv: lustre-clilmv }</div>
<div style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 11pt; color: rgb(0, 0, 0);" class="elementToProof">
- { index: 19, event: add_uuid, nid: 192.168.6.2@tcp(0x20000c0a80602), node: 192.168.6.2@tcp }</div>
<div style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 11pt; color: rgb(0, 0, 0);" class="elementToProof">
- { index: 20, event: attach, device: lustre-OST0000-osc, type: osc, UUID: lustre-clilov_UUID }</div>
<div style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 11pt; color: rgb(0, 0, 0);" class="elementToProof">
- { index: 21, event: setup, device: lustre-OST0000-osc, UUID: lustre-OST0000_UUID, node: 192.168.6.2@tcp }</div>
<div style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 11pt; color: rgb(0, 0, 0);" class="elementToProof">
- { index: 22, event: add_osc, device: lustre-clilov, ost: lustre-OST0000_UUID, index: 0, gen: 1 }</div>
<div style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 11pt; color: rgb(0, 0, 0);" class="elementToProof">
- { index: 25, event: add_uuid, nid: 192.168.6.4@tcp(0x20000c0a80604), node: 192.168.6.4@tcp }</div>
<div style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 11pt; color: rgb(0, 0, 0);" class="elementToProof">
- { index: 26, event: attach, device: lustre-OST0002-osc, type: osc, UUID: lustre-clilov_UUID }</div>
<div style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 11pt; color: rgb(0, 0, 0);" class="elementToProof">
- { index: 27, event: setup, device: lustre-OST0002-osc, UUID: lustre-OST0002_UUID, node: 192.168.6.4@tcp }</div>
<div style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 11pt; color: rgb(0, 0, 0);" class="elementToProof">
- { index: 28, event: add_osc, device: lustre-clilov, ost: lustre-OST0002_UUID, index: 2, gen: 1 }</div>
<div style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 11pt; color: rgb(0, 0, 0);" class="elementToProof">
- { index: 31, event: add_uuid, nid: 192.168.6.3@tcp(0x20000c0a80603), node: 192.168.6.3@tcp }</div>
<div style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 11pt; color: rgb(0, 0, 0);" class="elementToProof">
- { index: 32, event: attach, device: lustre-OST0001-osc, type: osc, UUID: lustre-clilov_UUID }</div>
<div style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 11pt; color: rgb(0, 0, 0);" class="elementToProof">
- { index: 33, event: setup, device: lustre-OST0001-osc, UUID: lustre-OST0001_UUID, node: 192.168.6.3@tcp }</div>
<div style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 11pt; color: rgb(0, 0, 0);" class="elementToProof">
- { index: 34, event: add_osc, device: lustre-clilov, ost: lustre-OST0001_UUID, index: 1, gen: 1 }</div>
<div style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 11pt; color: rgb(0, 0, 0);" class="elementToProof">
- { index: 37, event: add_uuid, nid: 192.168.6.5@tcp(0x20000c0a80605), node: 192.168.6.5@tcp }</div>
<div style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 11pt; color: rgb(0, 0, 0);" class="elementToProof">
- { index: 38, event: attach, device: lustre-OST0003-osc, type: osc, UUID: lustre-clilov_UUID }</div>
<div style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 11pt; color: rgb(0, 0, 0);" class="elementToProof">
- { index: 39, event: setup, device: lustre-OST0003-osc, UUID: lustre-OST0003_UUID, node: 192.168.6.5@tcp }</div>
<div style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 11pt; color: rgb(0, 0, 0);" class="elementToProof">
- { index: 40, event: add_osc, device: lustre-clilov, ost: lustre-OST0003_UUID, index: 3, gen: 1 }</div>
<div style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 11pt; color: rgb(0, 0, 0);" class="elementToProof">
- { index: 46, event: add_uuid, nid: 192.168.6.6@tcp(0x20000c0a80606), node: 192.168.6.6@tcp }</div>
<div style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 11pt; color: rgb(0, 0, 0);" class="elementToProof">
- { index: 47, event: attach, device: lustre-OST0004-osc, type: osc, UUID: lustre-clilov_UUID }</div>
<div style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 11pt; color: rgb(0, 0, 0);" class="elementToProof">
- { index: 48, event: setup, device: lustre-OST0004-osc, UUID: lustre-OST0004_UUID, node: 192.168.6.6@tcp }</div>
<div style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 11pt; color: rgb(0, 0, 0);" class="elementToProof">
- { index: 49, event: add_osc, device: lustre-clilov, ost: lustre-OST0004_UUID, index: 4, gen: 1 }</div>
<div style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 11pt; color: rgb(0, 0, 0);" class="elementToProof">
- { index: 53, event: conf_param, device: lustre-OST0003-osc, parameter: osc.active=1 }</div>
<div style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 11pt; color: rgb(0, 0, 0);" class="elementToProof">
- { index: 56, event: add_uuid, nid: 192.168.6.8@tcp(0x20000c0a80608), node: 192.168.6.8@tcp }</div>
<div style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 11pt; color: rgb(0, 0, 0);" class="elementToProof">
- { index: 57, event: attach, device: lustre-OST0006-osc, type: osc, UUID: lustre-clilov_UUID }</div>
<div style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 11pt; color: rgb(0, 0, 0);" class="elementToProof">
- { index: 58, event: setup, device: lustre-OST0006-osc, UUID: lustre-OST0006_UUID, node: 192.168.6.8@tcp }</div>
<div style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 11pt; color: rgb(0, 0, 0);" class="elementToProof">
- { index: 59, event: add_osc, device: lustre-clilov, ost: lustre-OST0006_UUID, index: 6, gen: 1 }</div>
<div style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 11pt; color: rgb(0, 0, 0);" class="elementToProof">
- { index: 68, event: add_uuid, nid: 192.168.6.7@tcp(0x20000c0a80607), node: 192.168.6.7@tcp }</div>
<div style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 11pt; color: rgb(0, 0, 0);" class="elementToProof">
- { index: 69, event: attach, device: lustre-OST0007-osc, type: osc, UUID: lustre-clilov_UUID }</div>
<div style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 11pt; color: rgb(0, 0, 0);" class="elementToProof">
- { index: 70, event: setup, device: lustre-OST0007-osc, UUID: lustre-OST0007_UUID, node: 192.168.6.7@tcp }</div>
<div style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 11pt; color: rgb(0, 0, 0);" class="elementToProof">
- { index: 71, event: add_osc, device: lustre-clilov, ost: lustre-OST0007_UUID, index: 7, gen: 1 }</div>
<div style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 11pt; color: rgb(0, 0, 0);" class="elementToProof">
- { index: 74, event: conf_param, device: lustre-OST0005-osc, parameter: osc.active=0 }</div>
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