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Hi Stepan,</div>
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I'm suspecting a configuration issue. Could you describe more in details your setup (nodes, lnet config, for server and clients).</div>
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llmount.sh is starting everything locally, on the local node by default.</div>
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Then you have this "not available" and client keeps connecting that needs to be fixed.</div>
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Small I/O working and large I/O not working, and both related to errors makes me think the small I/O goes to the client cache, and the large I/O are flushed sooner, and the system is reporting an error right away. The cached I/O will eventually fail when the
system will try to flush them.</div>
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What is your setup: client, server, "lctl list_nids" on each. Also check everything is "UP" in "lctl dl" output on each node.</div>
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Also, what was your format options for your MDT and OSTs?</div>
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Aurélien</div>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>De :</b> lustre-discuss <lustre-discuss-bounces@lists.lustre.org> de la part de Stepan Beskrovnyy via lustre-discuss <lustre-discuss@lists.lustre.org><br>
<b>Envoyé :</b> mercredi 14 janvier 2026 12:31<br>
<b>À :</b> lustre-discuss@lists.lustre.org <lustre-discuss@lists.lustre.org><br>
<b>Objet :</b> [lustre-discuss] Mounting troubles on Rocky 9.6 and 2.17.50 tag</font>
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<div>Hi Everyone! <br>
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Building from source lustre tag v2.17.50 on custom Rocky Linux 9.6 <br>
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<div>Linux Kernel version 5.14.0-570.58.1 . </div>
<div>Building from source via tutorial <a href="https://wiki.whamcloud.com/pages/viewpage.action?pageId=427393157">https://wiki.whamcloud.com/pages/viewpage.action?pageId=427393157</a> <br>
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<div>Build goes well, kernel modules loading successfully. <br>
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<div>llmount.sh goes well too, and fio benchmark works successfully on test filesystem <br>
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<div>Then, I start mounting mdt and oss on nodes, I get error (See first picture) that lustre cant found mount for OST(with mdt exact same problem). <img alt="image.png" width="557" height="35" data-outlook-trace="F:1|T:1" src="cid:ii_mkdxpwhx0"></div>
<div>But mounting processes seemed to be ok. <br>
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<div>After mounting all filesystem and trying to cp something on it, I have problems like (See picture two) connect is not available and lustre cant find target. <img alt="image.png" width="557" height="172" data-outlook-trace="F:1|T:1" src="cid:ii_mkdxs0n51"><br>
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If I copy small files like 10Kb, copying ends successfully, with the same errors. <br>
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If I copy bigger directory, like ior, then copying freeze with errors like on second picture. <br>
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Any thoughts ? What do I do wrong ? How can I debug this? <br>
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Thanks, <br>
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Stepan<br>
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