Data Domain: DD3300 Mapping disk alerts to the correct hard drive slot
Summary: Data Domain DD3300 disk alerts, reference the enclosure number and the slot number to identify which hard drive has a fault. This "enclosure -dot- disk" designation in the alert does not directly correspond to the physical slot. This article details how to map the information given in the alert to the correct physical disk to replace. ...
Instructions
Data Domain DD3300 uses a customized version of Dell's R740xd server platform.
On this platform, hard drive slot numbering begins with slot zero.
The Data Domain DD3300 software identifies hard drives, with slots designations beginning with slot=1.
It is imperative to identify the correct disk before doing any removal or replacement.
Use the below charts to establish which disk to remove based on the disk identification information provided in the alert.
| Software ID= disk 1.1 Phy slot = 0 (zero) |
Software ID= disk 1.4 Phy slot = 3 |
Software ID= disk 1.7 Phy slot = 6 |
Software ID= disk 1.10 Phy slot = 9 |
| Software ID= disk 1.2 Phy slot = 1 |
Software ID= disk 1.5 Phy slot = 4 |
Software ID= disk 1.8 Phy slot =7 |
Software ID= disk 1.11 Phy slot = 10 |
| Software ID= disk 1.3 Phy slot = 2 |
Software ID= disk 1.6 Phy slot =5 |
Software ID= disk 1.9 Phy slot = 8 |
Software ID= disk 1.12 Phy slot = 11 |
| Software ID= disk 1.15 Phy slot = 14 |
Software ID= disk 1.16 Phy slot = 15 |
Software ID= disk 1.17 Phy slot = 16 |
Software ID= disk 1.18 Phy slot = 17 |
| Software ID= disk 1.13 Phy slot = 12 |
Software ID= disk 1.14 UNUSED for DD3300 Phy slot = 13 |
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EXAMPLE:
- The Data Domain operating system posted the following disk failure alert.
Severity CRITICAL Class HardwareFailure Object Enclosure=1:Disk=18 Status active Message Unable to access a disk and the disk state is missing. Post Additional Information EnclosureSerialNumber=NA:DiskSerialNumber=NA:FailureCode=NA Clear Additional Information Event Id EVT-STORAGE-00002 Event Name DiskFailure Description Unable to communicate with a disk. This disk cannot be used at this time.
- Determine the enclosure and slot information in the alert. --> in this case,
Enclosure=1:Disk=18 - Reference the provided layouts to determine which physical slot, correlates to the enclosure and disk slot information from the alert.
- Layout diagrams indicate enclosure 1 disk 18, is located in physical slot # 17.
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Mapping disk alerts to the correct hard drive slot can also be done using the CLI (command-line interface).
Run the following commands to display the disk to slot-mapping information.
# alerts show current # disk show hardware detailed
EXAMPLE 2:
# alerts show current-detailed
Severity CRITICAL Class HardwareFailure Object Enclosure=1:Disk=18 Status active Message Unable to access a disk and the disk state is missing. Post Additional Information EnclosureSerialNumber=NA:DiskSerialNumber=NA:FailureCode=NA Clear Additional Information Event Id EVT-STORAGE-00002 Event Name DiskFailure Description Unable to communicate with a disk. This disk cannot be used at this time.
# disk show hardware detailed
...
...
Configuration: 14 drives present.
Hardware disk information
Disk Slot Manufacturer/Model Firmware Serial No. Capacity Type
(pci/idx)
---- --------- ------------------ -------- -------------- ---------- --------
1.1 0 ST4000NM0295 DT31 ZC1241AL 3.63 TiB SAS
1.2 1 ST4000NM0295 DT31 ZC1241DC 3.63 TiB SAS
1.3 2 ST4000NM0295 DT31 ZC1241E2 3.63 TiB SAS
1.4 3 ST4000NM0295 DT31 ZC1241D0 3.63 TiB SAS
1.5 4 ST4000NM0295 DT31 ZC123C5V 3.63 TiB SAS
1.6 5 ST4000NM0295 DT31 ZC123ZGP 3.63 TiB SAS
1.7 6 ST4000NM0295 DT31 ZC12418K 3.63 TiB SAS
1.8 7 ST4000NM0295 DT31 ZC124396 3.63 TiB SAS
1.9 8 ST4000NM0295 DT31 ZC1241AS 3.63 TiB SAS
1.10 9 ST4000NM0295 DT31 ZC1241B8 3.63 TiB SAS
1.11 10 ST4000NM0295 DT31 ZC12S062 3.63 TiB SAS
1.12 11 ST4000NM0295 DT31 ZC12PZ4J 3.63 TiB SAS
1.13 12 MZ7KM480HMHQ0D3 GD53 S3BUNX0J600187 447.13 GiB SATA-SSD
1.14 13 (absent) (absent) (absent) (absent) (absent)
1.15 14 ST4000NM0295 DT31 ZC12S0DD 3.63 TiB SAS
1.16 15 ST4000NM0295 DT31 ZC12S05H 3.63 TiB SAS
1.17 16 ST4000NM0295 DT31 ZC12S0M3 3.63 TiB SAS
1.18 17 ST4000NM0295 DT31 ZC12S0F7 3.63 TiB SAS << Note that disk 1.18 maps to physical slot # 17
---- --------- ------------------ -------- -------------- ---------- --------
Configuration: 18 drives present.
#disk show state CLI command, does not display physical hard drive state information.
The output from this command cannot be used to determine if there is a disk reconstruction, disk fault, or absent disk.
The information in this output only applies to virtual disk devs, and not hard drive (HDD).
Disk reconstruction status can only be established by connecting to the iDRAC port on the DD3300 appliance.
# disk show state
Dev 1 2 3 4 5 6 7 8 9 10 ----- ------------------------------ 1-10 Y Y . . . . . . . . 11-14 . . . . ----- ------------------------------ Legend State Count ------ ------------- ----- . In Use Device 12 Y System Device 2 ------ ------------- ----- Total 0 disks and 14 devs
The #disk beacon CLI command aids in locating the disk by flashing its LED.
Press Ctrl+C to stop the disk beacon command.
sysadmin@dd3300# disk beacon 1.1 Start disk LED beaconing for 1.1 ... ^C LED beaconing completed.