Hi, Does the H710 support HBA mode? I thought it wasn't until the PERC9 series that HBA mode was supported.
If that's the case, you probably just have to create a RAID0 virtual disk with the single drive. I guess you could confirm by seeing if you have any other virtual disks listed in the storage section of the iDRAC. Art On Wed, Aug 9, 2017 at 6:14 PM, Tim Mooney <[email protected]> wrote: > > Hi All! > > I need to replace a hard drive in a Dell R720 that's running RHEL 6.9. > The problem is that the replacement drive shows up as "Ready" in the > physical disks area of iDRAC, instead of "Online". It does not > automatically show up as a vdisk in the virtual disks area. > > The PERC H710 mini is in HBA mode, not RAID mode, so it's not handling > the mirroring. That's being done at the OS level with Linux's mdadm. > > This hard drive is part of an mdadm RAID1. The drive failed completely, > so mdadm failed each of the partitions out of the individual MD devices. > I removed the failed MD components and then forced the OS to forget about > /dev/sdb, with > > # echo 1 > /sys/block/sdb/device/delete > > I pulled the failed hard drive from the hot-swap bay, installed the Dell > replacement drive in the carrier, and inserted the replacement hard drive > into the bay. The drive LED blinked and went green, and iDRAC shows the > physical disk as "Ready", instead of "Online", and the replacement is > missing completely from the vdisk area. > > The OS did not auto-detect a hard drive being added to the bus, and even > a rescan via > > # echo '- - -' > /sys/class/scsi_host/host0/scan > > does not trigger it to recognize the replacement drive is there. I'm > guessing that's because I need to do something at the PERC/iDRAC/Lifecycle > level to get the drive to switch to "Online" and make it a vdisk. > > How do I go about doing that? > > We do not currently have any Dell OS-level RPMs installed, so no omsa or > srv-admin or whatever. After being on this list for a couple of years, > my confidence in those tools is extremely limited. > > It seems like 'megaclisas' might be able to help, but I have been > completely unable to find a working link to that tool, after the > LSI->Avago->Broadcomm transition. If anyone has a working link to get > it, I would appreciate seeing it. > > Could 'racadm' via ssh perform the necessary magic to get this drive so > that the PERC is presenting it as a disk to the OS? Is there something > easier than that, that also doesn't require a huge mess of questionable > Dell RPMs be installed? > > Any suggestions are much appreciated, > > Tim > -- > Tim Mooney [email protected] > Enterprise Computing & Infrastructure 701-231-1076 > (Voice) > Room 242-J6, Quentin Burdick Building 701-231-8541 (Fax) > North Dakota State University, Fargo, ND 58105-5164 > > _______________________________________________ > Linux-PowerEdge mailing list > [email protected] > https://lists.us.dell.com/mailman/listinfo/linux-poweredge >
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