Data Domain: Detecting Unsupported Hardware Configurations

Platforms since Artemis DD4200, DD4500, DD7200; Apollo (DD9500) Apollo+ (DD9800) & EOS T2, T3, T4 (DD9300, DD9600), support many configurations with varying sizes, counts, and placement options for Memory, I/O SLICs, HDD, or CPUs depending on licensing and what features are being used.

Examples of such variable features and configurations are:

• Expanded memory
• Expanded storage capacity
• Cache disks
• Extended Retention
• HA Active-Passive
• LTR (Cloud Tier)

Unsupported configurations can easily be encountered when I/O SLICs are borrowed from another Data Domain or EMC appliance. Due to the increasing complexity of configurations, this article provides general troubleshooting procedures to identify and resolve unsupported hardware configurations on Data Domain platforms. Always consult the platform hardware guides for best practices and mandatory configuration guidelines.

This example is for DD9500 with unsupported I/O SLICs installed:

• Eth5a is an unsupported four-port 1G copper SLIC taken from a dd4200/4500/7200 platform
• Slot 8 has an unsupported 8G FC SLIC taken from a dd4200/4500/7200 platform (DD9500 platform only supports 16G FC SLIC)
• Alert ID p0-9 was generated because Slot 9 for DD9500HA systems must remain empty and it has a SLIC installed.

Alert -Id      Post Time                  Severity   Class             Object               Message
-----   ------------------------   --------   ---------------   ------------------   ----------------------------------------------------------------------------
p0-3    Wed Jan 13 10:52:52 2016   WARNING    HardwareFailure   Enclosure=1:Slot=5   EVT-ENVIRONMENT-00047: PCI communication speed is degraded
p0-6    Thu Jan 14 16:34:06 2016   CRITICAL   Network           Interface Index=9    EVT-NETM-00001: Network interface connectivity is down on eth5b.
p0-9    Fri Jan 15 10:42:53 2016   WARNING    HardwareFailure                        EVT-ENVIRONMENT-00049: The system detected an invalid hardware configuration.
p0-10   Fri Jan 15 10:49:37 2016   CRITICAL    Network           Interface Index=1    EVT-FCSSM-00001: SCSI Target FibreChannel Port 8a is offline.
p0-11   Fri Jan 15 10:50:07 2016   CRITICAL    Network           Interface Index=2    EVT-FCSSM-00001: SCSI Target FibreChannel Port 8b is offline.
p0-1 Tue Nov 18 00:56:42 2014 CRITICAL HardwareFailure EVT-ENVIRONMENT-00048: Filesystem can't be enabled due to an invalid hardware configuration.
-----   ------------------------   --------   ---------------   ------------------   -----------------------------------------------------------------------------

# net show hardware

Port    Speed      Duplex    Supp Speeds      Hardware Address    Physical   Link Status   State
-----   --------   -------   --------------   -----------------   --------   -----------   -------
eth5a   1000Mb/s   full      10/100/1000      00:60:48:1f:f4:f6   Copper     yes           running          <<<<< Unsupported HW may still be functional
-----   --------   -------   --------------   -----------------   --------   -----------   -------

#system show ports
or
#enclosure show io-cards

Port   Connection   Link        Firmware       Hardware
       Type         Speed                      Address
----   ----------   ---------   ------------   ----------------------------
5a     Enet         1.0 Gbps                   00:60:48:1f:f4:f6 (eth5a)                <<<<< Unsupported HW may still be functional
5b     Enet                                    00:60:48:1f:f4:f7 (eth5b)
5c     Enet                                    00:60:48:1f:f4:f2 (eth5c)
5d     Enet                                    00:60:48:1f:f4:f3 (eth5d)

8a     FC-Tgt                   8.01.00        50:02:18:80:4d:60:02:2f WWNN             <<<<< Unsupported HW may still be functional
                                               50:02:18:89:4d:60:02:2f WWPN
8b     FC-Tgt                   8.01.00        50:02:18:80:4d:60:02:2f WWNN
                                               50:02:18:89:4d:61:02:2f WWPN
----   ----------   ---------   ------------   ----------------------------

Beginning in DD OS 5.6, the following command was added to easily pinpoint unsupported hardware configurations in complex environments (aka. Device Inventory Verification - DIV)

#enclosure show misconfiguration

IO Cards:
Slot   Device                          Status
----   -----------------------------   ----------
9      Quad Port 10GBase-T                                  << Misplaced   DD9500 slot 9 must be empty
8      Dual Port 8Gbps Fibre Channel   wrong type          << FC card from DD7200 does not meet requirements for use in DD9500
10 Hera NVRAM extra 10 Hera NVRAM misplaced
----   -----------------------------   ----------

 CPUs:
    No misconfiguration found.

Disks:
 Slot   Size(GiB)   Type   Media   Status
----   ---------   ----   -----   -------
2      186         SATA   SSD     missing

Memory DIMMs: Locator Bank Locator Size(GiB) Status ------- ------------ --------- --------- A2 0 0 missing A2 1 0 missing A2 2 0 missing A2 3 0 missing A0 0 8 misplaced A0 1 8 misplaced A0 2 8 misplaced A0 3 8 misplaced ------- ------------ --------- ---------