Creating a Virtual device with the AVAGO storcli command-line tool under Linux. Two examples are included:
- All disks are from one of the enclosure. All disks are included explicitly.
- Disks from two enclosures are included. One controller with two enclosures.
Check out how to Install the new storcli to manage (LSI/AVAGO/Broadcom) MegaRAID controller under CentOS 7
There are 31 disks of 36 harddisk bays. 5 are missing on purpose for the examples.
The initial states of the controller and the disks.
livecd ~ # opt/MegaRAID/storcli/storcli /c0 show Generating detailed summary of the adapter, it may take a while to complete. CLI Version = 007.0510.0000.0000 May 4, 2018 Operating system = Linux 4.19.72-gentoo Controller = 0 Status = Success Description = None Product Name = LSI 2108 MegaRAID Serial Number = FW-ABQRCBEAARBWA SAS Address = 5003048004015f00 PCI Address = 00:06:00:00 System Time = 07/20/2020 22:58:35 Mfg. Date = 00/00/00 Controller Time = 07/20/2020 22:58:36 FW Package Build = 12.15.0-0239 FW Version = 2.130.403-4660 BIOS Version = 3.30.02.2_4.16.08.00_0x06060A05 Driver Name = megaraid_sas Driver Version = 07.706.03.00-rc1 Vendor Id = 0x1000 Device Id = 0x79 SubVendor Id = 0x15D9 SubDevice Id = 0x700 Host Interface = PCI-E Device Interface = SAS-6G Bus Number = 6 Device Number = 0 Function Number = 0 Physical Drives = 31 PD LIST : ======= ----------------------------------------------------------------------------------- EID:Slt DID State DG Size Intf Med SED PI SeSz Model Sp Type ----------------------------------------------------------------------------------- 12:0 0 UGood - 1.817 TB SATA HDD N N 512B Hitachi HUA723020ALA640 D - 12:1 1 UGood - 1.817 TB SATA HDD N N 512B HGST HUS724020ALA640 D - 12:2 2 UGood - 1.817 TB SATA HDD N N 512B Hitachi HDS723020BLA642 D - 12:3 3 UGood - 1.817 TB SATA HDD N N 512B Hitachi HDS723020BLA642 D - 12:4 4 UGood - 1.817 TB SATA HDD N N 512B Hitachi HDS723020BLA642 D - 12:5 5 UGood - 1.817 TB SATA HDD N N 512B HGST HUS722T2TALA604 D - 12:6 6 UGood - 1.817 TB SATA HDD N N 512B TOSHIBA DT01ACA200 D - 12:7 7 UGood - 1.817 TB SATA HDD N N 512B Hitachi HDS723020BLA642 D - 12:8 8 UGood - 1.817 TB SATA HDD N N 512B Hitachi HDS723020BLA642 D - 12:9 9 UGood - 1.817 TB SATA HDD N N 512B Hitachi HDS723020BLA642 D - 12:10 10 UGood - 1.817 TB SATA HDD N N 512B Hitachi HDS723020BLA642 D - 12:11 11 UGood - 1.817 TB SATA HDD N N 512B Hitachi HDS723020BLA642 D - 37:0 13 UGood - 1.817 TB SATA HDD N N 512B Hitachi HDS723020BLA642 U - 37:1 14 UGood - 1.817 TB SATA HDD N N 512B Hitachi HDS723020BLA642 U - 37:2 15 UGood - 1.817 TB SATA HDD N N 512B Hitachi HDS723020BLA642 U - 37:3 16 UGood - 1.817 TB SATA HDD N N 512B Hitachi HUA723020ALA640 U - 37:4 17 UGood - 1.817 TB SATA HDD N N 512B Hitachi HDS723020BLA642 U - 37:6 19 UGood - 1.817 TB SATA HDD N N 512B Hitachi HDS723020BLA642 U - 37:7 20 UGood - 1.817 TB SATA HDD N N 512B HGST HUS722T2TALA604 U - 37:8 21 UGood - 1.817 TB SATA HDD N N 512B HGST HUS724020ALA640 U - 37:10 23 UGood - 1.817 TB SATA HDD N N 512B Hitachi HDS723020BLA642 U - 37:11 24 UGood - 1.817 TB SATA HDD N N 512B Hitachi HDS723020BLA642 U - 37:13 26 UGood - 1.817 TB SATA HDD N N 512B Hitachi HDS723020BLA642 U - 37:14 27 UGood - 1.817 TB SATA HDD N N 512B HGST HUS724020ALA640 U - 37:16 29 UGood - 1.817 TB SATA HDD N N 512B HGST HUS724020ALA640 U - 37:17 30 UGood - 1.817 TB SATA HDD N N 512B Hitachi HUA723020ALA640 U - 37:19 32 UGood - 1.817 TB SATA HDD N N 512B Hitachi HDS723020BLA642 U - 37:20 33 UGood - 1.817 TB SATA HDD N N 512B Hitachi HDS723020BLA642 U - 37:21 34 UGood - 1.817 TB SATA HDD N N 512B HGST HUS722T2TALA604 U - 37:22 35 UGood - 1.817 TB SATA HDD N N 512B Hitachi HDS723020BLA642 U - 37:23 36 UGood - 1.817 TB SATA HDD N N 512B HGST HUS724020ALA640 U - ----------------------------------------------------------------------------------- EID-Enclosure Device ID|Slt-Slot No.|DID-Device ID|DG-DriveGroup DHS-Dedicated Hot Spare|UGood-Unconfigured Good|GHS-Global Hotspare UBad-Unconfigured Bad|Onln-Online|Offln-Offline|Intf-Interface Med-Media Type|SED-Self Encryptive Drive|PI-Protection Info SeSz-Sector Size|Sp-Spun|U-Up|D-Down/PowerSave|T-Transition|F-Foreign UGUnsp-Unsupported|UGShld-UnConfigured shielded|HSPShld-Hotspare shielded CFShld-Configured shielded|Cpybck-CopyBack|CBShld-Copyback Shielded
The manual shows (always read the manual, first!):
livecd ~ # opt/MegaRAID/storcli/storcli /c0 add help Storage Command Line Tool Ver 007.0510.0000.0000 May 4, 2018 (c)Copyright 2018, AVAGO Technologies, All Rights Reserved. storcli /cx add vd r[0|1|5|6|00|10|50|60] [Size=<VD1_Sz>,<VD2_Sz>,..|all] [name=<VDNAME1>,..] drives=e:s|e:s-x|e:s-x,y,e:s-x,y,z [PDperArray=x][SED] [pdcache=on|off|default][pi][DimmerSwitch(ds)=default|automatic(auto)| none|maximum(max)|MaximumWithoutCaching(maxnocache)][WT|WB|AWB][nora|ra] [direct|cached] [cachevd] [Strip=<8|16|32|64|128|256|512|1024>] [AfterVd=X] [EmulationType=0|1|2] [Spares = [e:]s|[e:]s-x|[e:]s-x,y] [force][ExclusiveAccess] [Cbsize=0|1|2 Cbmode=0|1|2|3|4|7] storcli /cx add vd each r0 [name=<VDNAME1>,..] [drives=e:s|e:s-x|e:s-x,y] [SED] [pdcache=on|off|default][pi] [DimmerSwitch(ds)=default| automatic(auto)|none|maximum(max)|MaximumWithoutCaching(maxnocache)] [WT|WB|AWB] [nora|ra] [direct|cached] [EmulationType=0|1|2] [Strip=<8|16|32|64|128|256|512|1024>] [ExclusiveAccess] [Cbsize=0|1|2 Cbmode=0|1|2|3|4|7] storcli /cx add VD cachecade r[aid][0,1,10] drives = [e:]s|[e:]s-x|[e:]s-x,y [WT|WB] [assignvds = 0,1,2] storcli /cx add JBOD [drives=e:s|e:s-x|e:s-x,y]
Here is the output of the storcli:
Example 1) All disks are from one of the enclosure.
All disks are included explicitly because not all disks are present in the sequence from the first slot to the last one.
storcli /c0 add vd type=r6 drives=37:0,1,2,3,4,6,7,8,10,11,13,14,16,17 pdcache=on WB ra Strip=1024
All included disks are from one enclosure and only the slot IDs are enumerated separating them with commas.
The status of a successful command is “Success” and the description is “Add VD Succeeded”. The virtual drive is created successfully.
livecd ~ # opt/MegaRAID/storcli/storcli /c0 add vd type=r6 drives=37:0,1,2,3,4,6,7,8,10,11,13,14,16,17 pdcache=on WB ra Strip=1024 CLI Version = 007.0510.0000.0000 May 4, 2018 Operating system = Linux 4.19.72-gentoo Controller = 0 Status = Success Description = Add VD Succeeded livecd ~ # opt/MegaRAID/storcli/storcli /c0 show Generating detailed summary of the adapter, it may take a while to complete. CLI Version = 007.0510.0000.0000 May 4, 2018 Operating system = Linux 4.19.72-gentoo Controller = 0 Status = Success Description = None Product Name = LSI 2108 MegaRAID Serial Number = FW-ABQRCBEAARBWA SAS Address = 5003048004015f00 PCI Address = 00:06:00:00 System Time = 07/20/2020 22:59:28 Mfg. Date = 00/00/00 Controller Time = 07/20/2020 22:59:29 FW Package Build = 12.15.0-0239 FW Version = 2.130.403-4660 BIOS Version = 3.30.02.2_4.16.08.00_0x06060A05 Driver Name = megaraid_sas Driver Version = 07.706.03.00-rc1 Vendor Id = 0x1000 Device Id = 0x79 SubVendor Id = 0x15D9 SubDevice Id = 0x700 Host Interface = PCI-E Device Interface = SAS-6G Bus Number = 6 Device Number = 0 Function Number = 0 Drive Groups = 1 TOPOLOGY : ======== ---------------------------------------------------------------------------- DG Arr Row EID:Slot DID Type State BT Size PDC PI SED DS3 FSpace TR ---------------------------------------------------------------------------- 0 - - - - RAID6 Optl N 21.816 TB enbl N N dflt N N 0 0 - - - RAID6 Optl N 21.816 TB enbl N N dflt N N 0 0 0 37:0 13 DRIVE Onln N 1.817 TB enbl N N dflt - N 0 0 1 37:1 14 DRIVE Onln N 1.817 TB enbl N N dflt - N 0 0 2 37:2 15 DRIVE Onln N 1.817 TB enbl N N dflt - N 0 0 3 37:3 16 DRIVE Onln N 1.817 TB enbl N N dflt - N 0 0 4 37:4 17 DRIVE Onln N 1.817 TB enbl N N dflt - N 0 0 5 37:6 19 DRIVE Onln N 1.817 TB enbl N N dflt - N 0 0 6 37:7 20 DRIVE Onln N 1.817 TB enbl N N dflt - N 0 0 7 37:8 21 DRIVE Onln N 1.817 TB enbl N N dflt - N 0 0 8 37:10 23 DRIVE Onln N 1.817 TB enbl N N dflt - N 0 0 9 37:11 24 DRIVE Onln N 1.817 TB enbl N N dflt - N 0 0 10 37:13 26 DRIVE Onln N 1.817 TB enbl N N dflt - N 0 0 11 37:14 27 DRIVE Onln N 1.817 TB enbl N N dflt - N 0 0 12 37:16 29 DRIVE Onln N 1.817 TB enbl N N dflt - N 0 0 13 37:17 30 DRIVE Onln N 1.817 TB enbl N N dflt - N ---------------------------------------------------------------------------- DG=Disk Group Index|Arr=Array Index|Row=Row Index|EID=Enclosure Device ID DID=Device ID|Type=Drive Type|Onln=Online|Rbld=Rebuild|Dgrd=Degraded Pdgd=Partially degraded|Offln=Offline|BT=Background Task Active PDC=PD Cache|PI=Protection Info|SED=Self Encrypting Drive|Frgn=Foreign DS3=Dimmer Switch 3|dflt=Default|Msng=Missing|FSpace=Free Space Present TR=Transport Ready Virtual Drives = 1 VD LIST : ======= -------------------------------------------------------------- DG/VD TYPE State Access Consist Cache Cac sCC Size Name -------------------------------------------------------------- 0/0 RAID6 Optl RW No RWTD - OFF 21.816 TB -------------------------------------------------------------- Cac=CacheCade|Rec=Recovery|OfLn=OffLine|Pdgd=Partially Degraded|Dgrd=Degraded Optl=Optimal|RO=Read Only|RW=Read Write|HD=Hidden|TRANS=TransportReady|B=Blocked| Consist=Consistent|R=Read Ahead Always|NR=No Read Ahead|WB=WriteBack| AWB=Always WriteBack|WT=WriteThrough|C=Cached IO|D=Direct IO|sCC=Scheduled Check Consistency Physical Drives = 31 PD LIST : ======= ----------------------------------------------------------------------------------- EID:Slt DID State DG Size Intf Med SED PI SeSz Model Sp Type ----------------------------------------------------------------------------------- 12:0 0 UGood - 1.817 TB SATA HDD N N 512B Hitachi HUA723020ALA640 D - 12:1 1 UGood - 1.817 TB SATA HDD N N 512B HGST HUS724020ALA640 D - 12:2 2 UGood - 1.817 TB SATA HDD N N 512B Hitachi HDS723020BLA642 D - 12:3 3 UGood - 1.817 TB SATA HDD N N 512B Hitachi HDS723020BLA642 D - 12:4 4 UGood - 1.817 TB SATA HDD N N 512B Hitachi HDS723020BLA642 D - 12:5 5 UGood - 1.817 TB SATA HDD N N 512B HGST HUS722T2TALA604 D - 12:6 6 UGood - 1.817 TB SATA HDD N N 512B TOSHIBA DT01ACA200 D - 12:7 7 UGood - 1.817 TB SATA HDD N N 512B Hitachi HDS723020BLA642 D - 12:8 8 UGood - 1.817 TB SATA HDD N N 512B Hitachi HDS723020BLA642 D - 12:9 9 UGood - 1.817 TB SATA HDD N N 512B Hitachi HDS723020BLA642 D - 12:10 10 UGood - 1.817 TB SATA HDD N N 512B Hitachi HDS723020BLA642 D - 12:11 11 UGood - 1.817 TB SATA HDD N N 512B Hitachi HDS723020BLA642 D - 37:0 13 Onln 0 1.817 TB SATA HDD N N 512B Hitachi HDS723020BLA642 U - 37:1 14 Onln 0 1.817 TB SATA HDD N N 512B Hitachi HDS723020BLA642 U - 37:2 15 Onln 0 1.817 TB SATA HDD N N 512B Hitachi HDS723020BLA642 U - 37:3 16 Onln 0 1.817 TB SATA HDD N N 512B Hitachi HUA723020ALA640 U - 37:4 17 Onln 0 1.817 TB SATA HDD N N 512B Hitachi HDS723020BLA642 U - 37:6 19 Onln 0 1.817 TB SATA HDD N N 512B Hitachi HDS723020BLA642 U - 37:7 20 Onln 0 1.817 TB SATA HDD N N 512B HGST HUS722T2TALA604 U - 37:8 21 Onln 0 1.817 TB SATA HDD N N 512B HGST HUS724020ALA640 U - 37:10 23 Onln 0 1.817 TB SATA HDD N N 512B Hitachi HDS723020BLA642 U - 37:11 24 Onln 0 1.817 TB SATA HDD N N 512B Hitachi HDS723020BLA642 U - 37:13 26 Onln 0 1.817 TB SATA HDD N N 512B Hitachi HDS723020BLA642 U - 37:14 27 Onln 0 1.817 TB SATA HDD N N 512B HGST HUS724020ALA640 U - 37:16 29 Onln 0 1.817 TB SATA HDD N N 512B HGST HUS724020ALA640 U - 37:17 30 Onln 0 1.817 TB SATA HDD N N 512B Hitachi HUA723020ALA640 U - 37:19 32 UGood - 1.817 TB SATA HDD N N 512B Hitachi HDS723020BLA642 U - 37:20 33 UGood - 1.817 TB SATA HDD N N 512B Hitachi HDS723020BLA642 U - 37:21 34 UGood - 1.817 TB SATA HDD N N 512B HGST HUS722T2TALA604 U - 37:22 35 UGood - 1.817 TB SATA HDD N N 512B Hitachi HDS723020BLA642 U - 37:23 36 UGood - 1.817 TB SATA HDD N N 512B HGST HUS724020ALA640 U - ----------------------------------------------------------------------------------- EID-Enclosure Device ID|Slt-Slot No.|DID-Device ID|DG-DriveGroup DHS-Dedicated Hot Spare|UGood-Unconfigured Good|GHS-Global Hotspare UBad-Unconfigured Bad|Onln-Online|Offln-Offline|Intf-Interface Med-Media Type|SED-Self Encryptive Drive|PI-Protection Info SeSz-Sector Size|Sp-Spun|U-Up|D-Down/PowerSave|T-Transition|F-Foreign UGUnsp-Unsupported|UGShld-UnConfigured shielded|HSPShld-Hotspare shielded CFShld-Configured shielded|Cpybck-CopyBack|CBShld-Copyback Shielded
Because if you use a valid range 37:0-17 (enclosure:disk_range(N-M)) with missing disks it throws an error “Invalid PDs specified”. All disks in range must be present and in “UGood” (i.e. “Unconfigured Good” state). No virtual drive is created!
livecd ~ # opt/MegaRAID/storcli/storcli /c0 add vd type=r6 drives=37:0-17 pdcache=on WB ra Strip=1024 CLI Version = 007.0510.0000.0000 May 4, 2018 Operating system = Linux 4.19.72-gentoo Controller = 0 Status = Failure Description = Invalid PDs specified
Example 2) Disks from two enclosures are included.
As can be seen in the initial state there are two enclosures with IDs 12 and 37. This time including all disks and their enclosure ID for each one:
storcli /c0 add vd type=r6 drives=37:19,37:20,37:21,37:22,37:23,12:0,12:1,12:2,12:3,12:4,12:5,12:6,12:7,12:8,12:9,12:10,12:11 pdcache=on WB ra Strip=1024
The second virtual drive is added successfully:
livecd ~ # opt/MegaRAID/storcli/storcli /c0 add vd type=r6 drives=37:19,37:20,37:21,37:22,37:23,12:0,12:1,12:2,12:3,12:4,12:5,12:6,12:7,12:8,12:9,12:10,12:11 pdcache=on WB ra Strip=1024 CLI Version = 007.0510.0000.0000 May 4, 2018 Operating system = Linux 4.19.72-gentoo Controller = 0 Status = Success Description = Add VD Succeeded livecd ~ # opt/MegaRAID/storcli/storcli /c0 show Generating detailed summary of the adapter, it may take a while to complete. CLI Version = 007.0510.0000.0000 May 4, 2018 Operating system = Linux 4.19.72-gentoo Controller = 0 Status = Success Description = None Product Name = LSI 2108 MegaRAID Serial Number = FW-ABQRCBEAARBWA SAS Address = 5003048004015f00 PCI Address = 00:06:00:00 System Time = 07/20/2020 23:00:49 Mfg. Date = 00/00/00 Controller Time = 07/20/2020 23:00:50 FW Package Build = 12.15.0-0239 FW Version = 2.130.403-4660 BIOS Version = 3.30.02.2_4.16.08.00_0x06060A05 Driver Name = megaraid_sas Driver Version = 07.706.03.00-rc1 Vendor Id = 0x1000 Device Id = 0x79 SubVendor Id = 0x15D9 SubDevice Id = 0x700 Host Interface = PCI-E Device Interface = SAS-6G Bus Number = 6 Device Number = 0 Function Number = 0 Drive Groups = 2 TOPOLOGY : ======== ---------------------------------------------------------------------------- DG Arr Row EID:Slot DID Type State BT Size PDC PI SED DS3 FSpace TR ---------------------------------------------------------------------------- 0 - - - - RAID6 Optl Y 21.816 TB enbl N N dflt N N 0 0 - - - RAID6 Optl Y 21.816 TB enbl N N dflt N N 0 0 0 37:0 13 DRIVE Onln N 1.817 TB enbl N N dflt - N 0 0 1 37:1 14 DRIVE Onln N 1.817 TB enbl N N dflt - N 0 0 2 37:2 15 DRIVE Onln N 1.817 TB enbl N N dflt - N 0 0 3 37:3 16 DRIVE Onln N 1.817 TB enbl N N dflt - N 0 0 4 37:4 17 DRIVE Onln N 1.817 TB enbl N N dflt - N 0 0 5 37:6 19 DRIVE Onln N 1.817 TB enbl N N dflt - N 0 0 6 37:7 20 DRIVE Onln N 1.817 TB enbl N N dflt - N 0 0 7 37:8 21 DRIVE Onln N 1.817 TB enbl N N dflt - N 0 0 8 37:10 23 DRIVE Onln N 1.817 TB enbl N N dflt - N 0 0 9 37:11 24 DRIVE Onln N 1.817 TB enbl N N dflt - N 0 0 10 37:13 26 DRIVE Onln N 1.817 TB enbl N N dflt - N 0 0 11 37:14 27 DRIVE Onln N 1.817 TB enbl N N dflt - N 0 0 12 37:16 29 DRIVE Onln N 1.817 TB enbl N N dflt - N 0 0 13 37:17 30 DRIVE Onln N 1.817 TB enbl N N dflt - N 1 - - - - RAID6 Optl N 27.270 TB enbl N N dflt N N 1 0 - - - RAID6 Optl N 27.270 TB enbl N N dflt N N 1 0 0 37:19 32 DRIVE Onln N 1.817 TB enbl N N dflt - N 1 0 1 37:20 33 DRIVE Onln N 1.817 TB enbl N N dflt - N 1 0 2 37:21 34 DRIVE Onln N 1.817 TB enbl N N dflt - N 1 0 3 37:22 35 DRIVE Onln N 1.817 TB enbl N N dflt - N 1 0 4 37:23 36 DRIVE Onln N 1.817 TB enbl N N dflt - N 1 0 5 12:0 0 DRIVE Onln N 1.817 TB enbl N N dflt - N 1 0 6 12:1 1 DRIVE Onln N 1.817 TB enbl N N dflt - N 1 0 7 12:2 2 DRIVE Onln N 1.817 TB enbl N N dflt - N 1 0 8 12:3 3 DRIVE Onln N 1.817 TB enbl N N dflt - N 1 0 9 12:4 4 DRIVE Onln N 1.817 TB enbl N N dflt - N 1 0 10 12:5 5 DRIVE Onln N 1.817 TB enbl N N dflt - N 1 0 11 12:6 6 DRIVE Onln N 1.817 TB enbl N N dflt - N 1 0 12 12:7 7 DRIVE Onln N 1.817 TB enbl N N dflt - N 1 0 13 12:8 8 DRIVE Onln N 1.817 TB enbl N N dflt - N 1 0 14 12:9 9 DRIVE Onln N 1.817 TB enbl N N dflt - N 1 0 15 12:10 10 DRIVE Onln N 1.817 TB enbl N N dflt - N 1 0 16 12:11 11 DRIVE Onln N 1.817 TB enbl N N dflt - N ---------------------------------------------------------------------------- DG=Disk Group Index|Arr=Array Index|Row=Row Index|EID=Enclosure Device ID DID=Device ID|Type=Drive Type|Onln=Online|Rbld=Rebuild|Dgrd=Degraded Pdgd=Partially degraded|Offln=Offline|BT=Background Task Active PDC=PD Cache|PI=Protection Info|SED=Self Encrypting Drive|Frgn=Foreign DS3=Dimmer Switch 3|dflt=Default|Msng=Missing|FSpace=Free Space Present TR=Transport Ready Virtual Drives = 2 VD LIST : ======= -------------------------------------------------------------- DG/VD TYPE State Access Consist Cache Cac sCC Size Name -------------------------------------------------------------- 0/0 RAID6 Optl RW No RWTD - OFF 21.816 TB 1/1 RAID6 Optl RW No RWTD - OFF 27.270 TB -------------------------------------------------------------- Cac=CacheCade|Rec=Recovery|OfLn=OffLine|Pdgd=Partially Degraded|Dgrd=Degraded Optl=Optimal|RO=Read Only|RW=Read Write|HD=Hidden|TRANS=TransportReady|B=Blocked| Consist=Consistent|R=Read Ahead Always|NR=No Read Ahead|WB=WriteBack| AWB=Always WriteBack|WT=WriteThrough|C=Cached IO|D=Direct IO|sCC=Scheduled Check Consistency Physical Drives = 31 PD LIST : ======= ----------------------------------------------------------------------------------- EID:Slt DID State DG Size Intf Med SED PI SeSz Model Sp Type ----------------------------------------------------------------------------------- 12:0 0 Onln 1 1.817 TB SATA HDD N N 512B Hitachi HUA723020ALA640 U - 12:1 1 Onln 1 1.817 TB SATA HDD N N 512B HGST HUS724020ALA640 U - 12:2 2 Onln 1 1.817 TB SATA HDD N N 512B Hitachi HDS723020BLA642 U - 12:3 3 Onln 1 1.817 TB SATA HDD N N 512B Hitachi HDS723020BLA642 U - 12:4 4 Onln 1 1.817 TB SATA HDD N N 512B Hitachi HDS723020BLA642 U - 12:5 5 Onln 1 1.817 TB SATA HDD N N 512B HGST HUS722T2TALA604 U - 12:6 6 Onln 1 1.817 TB SATA HDD N N 512B TOSHIBA DT01ACA200 U - 12:7 7 Onln 1 1.817 TB SATA HDD N N 512B Hitachi HDS723020BLA642 U - 12:8 8 Onln 1 1.817 TB SATA HDD N N 512B Hitachi HDS723020BLA642 U - 12:9 9 Onln 1 1.817 TB SATA HDD N N 512B Hitachi HDS723020BLA642 U - 12:10 10 Onln 1 1.817 TB SATA HDD N N 512B Hitachi HDS723020BLA642 U - 12:11 11 Onln 1 1.817 TB SATA HDD N N 512B Hitachi HDS723020BLA642 U - 37:0 13 Onln 0 1.817 TB SATA HDD N N 512B Hitachi HDS723020BLA642 U - 37:1 14 Onln 0 1.817 TB SATA HDD N N 512B Hitachi HDS723020BLA642 U - 37:2 15 Onln 0 1.817 TB SATA HDD N N 512B Hitachi HDS723020BLA642 U - 37:3 16 Onln 0 1.817 TB SATA HDD N N 512B Hitachi HUA723020ALA640 U - 37:4 17 Onln 0 1.817 TB SATA HDD N N 512B Hitachi HDS723020BLA642 U - 37:6 19 Onln 0 1.817 TB SATA HDD N N 512B Hitachi HDS723020BLA642 U - 37:7 20 Onln 0 1.817 TB SATA HDD N N 512B HGST HUS722T2TALA604 U - 37:8 21 Onln 0 1.817 TB SATA HDD N N 512B HGST HUS724020ALA640 U - 37:10 23 Onln 0 1.817 TB SATA HDD N N 512B Hitachi HDS723020BLA642 U - 37:11 24 Onln 0 1.817 TB SATA HDD N N 512B Hitachi HDS723020BLA642 U - 37:13 26 Onln 0 1.817 TB SATA HDD N N 512B Hitachi HDS723020BLA642 U - 37:14 27 Onln 0 1.817 TB SATA HDD N N 512B HGST HUS724020ALA640 U - 37:16 29 Onln 0 1.817 TB SATA HDD N N 512B HGST HUS724020ALA640 U - 37:17 30 Onln 0 1.817 TB SATA HDD N N 512B Hitachi HUA723020ALA640 U - 37:19 32 Onln 1 1.817 TB SATA HDD N N 512B Hitachi HDS723020BLA642 U - 37:20 33 Onln 1 1.817 TB SATA HDD N N 512B Hitachi HDS723020BLA642 U - 37:21 34 Onln 1 1.817 TB SATA HDD N N 512B HGST HUS722T2TALA604 U - 37:22 35 Onln 1 1.817 TB SATA HDD N N 512B Hitachi HDS723020BLA642 U - 37:23 36 Onln 1 1.817 TB SATA HDD N N 512B HGST HUS724020ALA640 U - ----------------------------------------------------------------------------------- EID-Enclosure Device ID|Slt-Slot No.|DID-Device ID|DG-DriveGroup DHS-Dedicated Hot Spare|UGood-Unconfigured Good|GHS-Global Hotspare UBad-Unconfigured Bad|Onln-Online|Offln-Offline|Intf-Interface Med-Media Type|SED-Self Encryptive Drive|PI-Protection Info SeSz-Sector Size|Sp-Spun|U-Up|D-Down/PowerSave|T-Transition|F-Foreign UGUnsp-Unsupported|UGShld-UnConfigured shielded|HSPShld-Hotspare shielded CFShld-Configured shielded|Cpybck-CopyBack|CBShld-Copyback Shielded
The dmesg shows the two detected disks:
livecd ~ # dmesg|tail -n 16 [44891.251524] scsi 4:2:0:0: Direct-Access SMC SMC2108 2.13 PQ: 0 ANSI: 5 [44891.252069] sd 4:2:0:0: Attached scsi generic sg2 type 0 [44891.252870] sd 4:2:0:0: [sda] 46851538944 512-byte logical blocks: (24.0 TB/21.8 TiB) [44891.253001] sd 4:2:0:0: [sda] Write Protect is off [44891.253005] sd 4:2:0:0: [sda] Mode Sense: 1f 00 00 08 [44891.253240] sd 4:2:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA [44891.277098] sd 4:2:0:0: [sda] Attached SCSI disk [44977.512181] scsi 4:2:1:0: Direct-Access SMC SMC2108 2.13 PQ: 0 ANSI: 5 [44977.512652] sd 4:2:1:0: Attached scsi generic sg5 type 0 [44977.515321] sd 4:2:1:0: [sdc] 58564423680 512-byte logical blocks: (30.0 TB/27.3 TiB) [44977.515325] sd 4:2:1:0: [sdc] 4096-byte physical blocks [44977.515571] sd 4:2:1:0: [sdc] Write Protect is off [44977.515575] sd 4:2:1:0: [sdc] Mode Sense: 1f 00 00 08 [44977.515954] sd 4:2:1:0: [sdc] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA [44977.540635] sd 4:2:1:0: [sdc] Attached SCSI disk
Note the OS just add the next free device name. sdb is the livecd that’s why it cannot be used for the raid device names.