Replacing a defective disk with a used disk

Connect a good used disk to a Linux/Windows server that does not have a RAID card.

Overwrite the good used disk content with the dd tool:

• On Linux OS

  • For NVME SSD:

    1. To make sure you are running the commands for the correct disk, run:

       smartctl -a /dev/nvmexnX

       For example:

       smartctl -a /dev/nvmexn1

    2. Run the dd commands:

       dd if=/dev/zero of=/dev/nvmexn1 bs=512 count=1024 dd if=/dev/zero of=/dev/nvmexn1 seek=$(( $(blockdev --getsz /dev/nvmexn1) - 1024 )) bs=512 count=1024

       Note - nvmexn1 is the SSD listed in the /dev folder

  • For HDD:

    1. To make sure you are running the commands for the correct disk, run:

       smartctl -a /dev/sdx

       Example output:

       [Expert@LinuxMachine:0]# smartctl -a /dev/sdd smartctl 7.0 2018-12-30 r4883 [x86_64-linux-4.18.0-372.9.1cpx86_64] (local build) Copyright (C) 2002-18, Bruce Allen, Christian Franke, www.smartmontools.org   === START OF INFORMATION SECTION === Device Model:      ST8000NM017B-2TJ103 Serial Number:     WWZ4T84Z LU WWN Device Id:  5 000c50 0e85balea Firmware Version:  SNO3 User Capacity:     8,001,563,222,016 bytes [8.00 TB] Sector size:       512 bytes logical 1006 bytes physical Rotation Rate:     7200 rpm Form Factor:       3.5 inches Device is:         Not in smartctl database [for details use: -P showall] ATA Version is:    ACS-4 (minor revision not indicated) SATA Version is:   SATA 3.3, 6.0 Gb/s (current: 6.0 Gb/s) Local Time is:     Thu Dec 12 13:59:56 2024 IST SMART support is:  Available - device has SMART capability. SMART support is:  Enabled

    2. Run the dd commands:

       dd if=/dev/zero of=/dev/sdx bs=512 count=1024 dd if=/dev/zero of=/dev/sdx seek=$(( $(blockdev --getsz /dev/sdx) - 1024 )) bs=512 count=1024

       Note - sdx is the HDD listed in the /dev folder.

• On Windows OS

  The Windows dd.exe is a GPL license tool you can download from http://www.chrysocome.net/dd. Make sure you select the correct drive.

  1. To view the list of available drives, the specific drive's ID and full block size, run:

     dd --list

     Example output:

     NT Block Device Objects \\?\Device\CdRom0   size is 2147483647 bytes \\?\Device\Harddisk0\Partition0   link to \\?\Device\Harddisk0\DR0   Fixed hard disk media. Block size = 512   size is 7681501126656 bytes \\?\Device\Harddisk1\Partition0   link to \\?\Device\Harddisk1\DR1   Fixed hard disk media. Block size - 512   size is 7681501126656 bytes \\?\Device\Harddisk1\Partition1   link to \\?\Device\HarddiskVolume1 \\?\Device\Harddisk1\Partition2   link to \\?\Device\HarddiskVolume2   Fixed hard disk media. Block size = 512   size is 16777216 bytes \\?\Device\Harddisk1\Partition3   link to \\?\Device\HarddiskVolume3 \\?\Device\Harddisk1\Partition4   link to \\?\Device\HarddiskVolume4   Fixed hard disk media. Block size = 512   size is 631242752 bytes

  2. Run the command:

     dd if=/dev/zero of=\\?\Device\Harddiskx\DRx bs=512 seek=0 count=1024

     Note - Harddiskx\DRx is the disk from the dd --list output. Make sure you identify the correct disk.

     Example output:

     F:\dd_06beta3>dd if=/dev/zero of=\\?\Device\Harddisk0\DR0 bs=512 seek=0 count=1024 rawwrite dd for windows version 0.6betas. Written by John Newbigin <jn@it.swin.edu.au> This program is covered by terms of the GPL Version 2.   1024+0 records in 1024+0 records out

  3. Run the command:

     dd if=/dev/zero of=\\?\Device\Harddiskx\DRx bs=512 seek=15002930864 count=1024

     Example output:

     F:\dd_06beta3>dd if=/dev/zero of=\\?\Device\Harddisk0\DR0 bs=512 seek=15002930864 count=1024 rawwrite dd for windows version 0.6beta3. Written by John Newbigin <jn@it.swin.edu.au> This program is covered by terms of the GPL Version 2.   1024+0 records in 1024+0 records out

Connect the good used disk to the appliance and synchronize the RAID.

• On Smart-1 7000-XL / Smart-1 7000-UL:

  The disk starts to rebuild automatically when you place it back into the appliance.

• On Smart-1 7000-L appliance:

  When placing the disk back into the appliance, the disk status shows as UBad in the output of storcli64 /c0 show all.

  For example:

  EID:Slt DID State  DG  Size    Intf Med SED PI Sesz Model                Sp Type ------------------------------------------------------------------------------- 252:0   21  onln   0 7.276 TB  SATA HDD N   N  512B ST8000NM017B-2TJ103  U  - 252:1   23  onln   0 7.276 TB  SATA HDD N   N  512B ST8000NM017B-2TJ103  U  - 252:2    2  onln   0 7.276 TB  SATA HDD N   N  512B ST8000NM017B-2TJ103  U  - 252:3   8  UBad   - 7.276 TB  SATA HDD N   N  512B ST8000NM017B-2TJ     U  - 252:4   18  UGood  0 7.276 TB  SATA HDD N   N  512B ST8000NM017B-2TJ103  U  - 252:5   16  UGood  0 7.276 TB  SATA HDD N   N  512B ST8000NM017B-2TJ103  U  - 252:6   24  onln   0 7.276 TB  SATA HDD N   N  512B ST8000NM017B-2TJ103  U  - 252:7   11  UGood  0 7.276 TB  SATA HDD N   N  512B ST8000NM017B-2TJ103  U  -

  For the RAID to start synchronizing, run from the Gaia Expert mode:

  storcli64 /c0/ex/sx set good

  In the example above:

  EID = e252

  Slt = s3

  The command is:

  storcli64 /c0/e252/s3 set good