The omreport utility generates system-specific information, including details about the virtual disks.Īs an example, let’s extract information about the /dev/sda virtual device: $ omreport storage vdiskĪssociated Fluid Cache State : Not Applicableĭisk Cache Policy : Enabled 3. Now the replacement of the defective hard disk can be arranged. However, when vendor-specific tools are available for the system, we should emphasize using them instead of generic utilities.įor instance, we can use the omreport utility that ships with the OpenManage CLI suite. serial number of the working hard disk(s) to the customer service. The generic tools we’ve discussed so far can be used to generate quick information. However, it gives us enough details to search the web for additional information. Smartctl doesn’t necessarily print information about RAID controllers. SMART support is: Available - device has SMART capability. SATA Version is: SATA 2.6, 3.0 Gb/s (current: 3.0 Gb/s) Sector Sizes: 512 bytes logical, 4096 bytes physicalĪTA Version is: ATA8-ACS T13/1699-D revision 4 Now, we can generate various reports and run different tests against this device using smartctl.įor that purpose, we can use the –all option to print the entire relevant information about the disk: $ smartctl -all /dev/sda We can see that the SCSI disk is available under the sda virtual device. The previous installation of virtual firewall was not properly removed.Customers can de-register it in two ways: De-Register from Firewall GUI. sd 0:0:0:0: Attached scsi generic sg0 type 0 This serial number is already used with another installation (E1004) Resolution. Block layer SCSI generic (bsg) driver version 0.4 loaded (major 243) We can install it from the official repositories.īefore running smartctl against our drives, we’ll parse the dmesg output for our SCSI disk first: $ dmesg | grep -i scsi smartctl is used to generate various disk reports and error logs. We dealt with this in direct support, but your serial was never for SoftRAID, it was for XT, which was corrected. This seems to have worked, although it may still have a degree of risk.In addition to the above methods, we can also use the smartctl utility to find out our disk information from virtual devices. Rather than spend my time debugging a C application and risk killing my arrays with a bug, I decided to try to trick md/ mdadm into doing my work for me, as mentioned in my answer. (3) started to push things a little - I would have to rip the superblock checksum code from the md driver, modify it to work with a userspace program and hope for the best. (1) and (2) are relatively simple and can be automated via a script or small program. Modify the dev_roles array to mark the old slot as empty and place the proper role at the new slot.To modify the slot assignments in the device superblock I would need to do the following: I am now considering direct modification of said field to change the slot number - I don't suppose there is some standard way to manipulate the RAID superblock? Unable to assign hot spare in Software RAID configuration when the virtual disk. Gone is the need to download and install the SoftRAID driver before your volume will mount. Lsblk utility reports incorrect serial number The dmidecode utility displays. At OWC, we have made some subtle changes in the past 12 months in the way SoftRAID is installed and used. For the version 1.0 superblocks that I am using that would be the dev_number field as defined in include/linux/raid/md_p.h of the Linux kernel source. Amid all the changes, the SoftRAID development team has been hard at work making volume management easier and safer than ever. I have verified that the slot number persists in the component device superblock. Is there a way to specify which slot a new device should occupy in a RAID array? I would like to fix this glitch, both to satisfy my inner perfectionist and to avoid any potential sources of future confusion in a crisis. Mdadm -E verifies that the actual slot numbers in the device superblocks are correct, yet the numbers shown in /proc/mdstat are still weird. Md0 : active raid6 sde1 sdd1 sda1 sdf1 sdc1 sdb1Ģ5185536 blocks super 1.0 level 6, 64k chunk, algorithm 2 Using mdadm -add does result in a proper RAID6 configuration, with one glitch - the new drives are placed in new slots, which results in this /proc/mdstat snippet. I now need to add those drives in those empty slots. When a hard disk drive in one of my Linux machines failed, I took the opportunity to migrate from RAID5 to a 6-disk software RAID6 array.Īt the time of the migration I did not have all 6 drives - more specifically the fourth and fifth (slots 3 and 4) drives were already in use in the originating array, so I created the RAID6 array with a couple of missing devices.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |