<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <body> <div dir="auto"> <div dir="auto">Try <a href="https://www.linuxsysadmins.com/recover-a-deleted-physical-volume/?amp">https://www.linuxsysadmins.com/recover-a-deleted-physical-volume/?amp</a></div><div dir='auto'><br></div> <div id="aqm-original" style="color: black;">  <div class="aqm-original-body"> <div style="color: black;"> <p style="color: black; font-size: 10pt; font-family: sans-serif; margin: 8pt 0;">On 26 July 2022 09:16:32 Ken Bass <daytooner@gmail.com> wrote:</p> <blockquote type="cite" class="gmail_quote" style="margin: 0 0 0 0.75ex; border-left: 1px solid #808080; padding-left: 0.75ex;"> <div dir="ltr"><div>(fwiw: I am new to this list, so please bear with me.)</div><div><br></div><div>Background: I have a very large (20TB) logical volume consisting of 3 drives. One of those drives unexpectedloy died (isn't that always the case :-)). The drive that failed happened to be the last PV. So I am assuming that there is still 2/3 of the data still intact and, to some extent, recoverable. Although, apparently the ext4 fs is not recognised.<br></div><div><br></div><div>I activated the LV partially (via -P). But running any utility on that (eg: dumpe2fs, e2fsck, ...) I get many of these in dmesg:</div><div><br></div><div>"Buffer I/O error on dev dm-0, logical block xxxxxxx, async page read." The thing is, the xxxxxxx block is on the missing drive/pv.<br></div><div><br></div><div>I have also tried some recovery software, but eventually get these same messages, and the data recovered is not really useful. <br></div><div><br></div><div>Please help! How can I get passed that dmesg error, and move on. 14TB recovered is better than 0.</div><div><br></div><div>TIA</div><div>ken</div><div><br></div><div><br></div></div> <div>_______________________________________________</div> <div>linux-lvm mailing list</div> <div><a class="aqm-autolink aqm-autowrap" href="mailto:linux-lvm%40redhat.com">linux-lvm@redhat.com</a></div> <div><a class="aqm-autolink aqm-autowrap" href="https://listman.redhat.com/mailman/listinfo/linux-lvm">https://listman.redhat.com/mailman/listinfo/linux-lvm</a></div> <div>read the LVM HOW-TO at <a class="aqm-autolink aqm-autowrap" href="http://tldp.org/HOWTO/LVM-HOWTO/">http://tldp.org/HOWTO/LVM-HOWTO/</a></div> <div><br></div> </blockquote> </div> </div>  </div><div dir="auto"><br></div> </div></body> </html>