Undocumented Equallogic CLI Commands

Roeland Kuipers — Fri, 26 Jun 2009 18:05:40 +0000

Equallogic’s are very nice boxes; fast, robust and very scalable (linear!; adding an enclosure adds processing power spindles and cache!). They don’t have licenses to enable features, WYSIWG!.
But sometimes a bit of a “blackbox”. This has been greatly enhanced by the release of the Equallogic SAN HQ Software.
It would be nice however if they would support synchronous replication between two groups, they do support a-synchronous replication though. And if they were a bit more flexible on the networking side by supporting VLAN tagging for example.

For the people who want to have a bit more insights:

SSH into your Equallogic group, login and enter “support”.

Be aware of the following message!

You are running a support command, which is normally restricted to PS Series Technical Support personnel. Do not use without instruction from Technical Support.

When running “cachetool”:

When running “netstat -i”:

IP Statistics:
4137170846 total packets received
183707 total bad packets drop
0 bad header checksums
0 with size smaller than minimum
0 with data size < data length
0 with length > max ip packet size
0 with header length < data size
0 with data length < header length
0 with bad options
0 with incorrect version number
0 fragments received
0 fragments dropped (dup or out of space)
0 malformed fragments dropped
0 fragments dropped after timeout
0 packets reassembled ok
4136987139 packets for this host
0 packets for unknown/unsupported protocol
0 packets forwarded (0 packets fast forwarded)
183707 packets not forwardable
0 redirects sent
5530887305 packets sent from this host
0 packets sent with fabricated ip header
0 output packets dropped due to no bufs, etc.
47 output packets discarded due to no route
0 output datagrams fragmented
0 fragments created
0 datagrams that can’t be fragmented

There are more commands to discover. Try TAB completion and mind the difference between “Bad Command” & “Ambigious command”. These commands are not shown when using “help” and most have a -? or -h option.

AGAIN: ONLY DO THIS ON TEST SYSTEMS AND WHEN YOU KNOW WHAT YOU’R DOING ONLY!… Don’t come whining here if stuff breaks…

Dell Equallogic Improvements

Roeland Kuipers — Thu, 11 Jun 2009 12:59:27 +0000

The latest firmware 4.1.4 release includes the following new features:

Support for the PS6000 and PS6500 series models
Support for SSD devices
RAID 6 for all array models
Additional RAID types for the PS5500E
- RAID 10
- RAID 5
Upgrade firmware from GUI
Windows 2008 Cluster support improvements
Improvements for IPv6
Maintenance and fixes

Next to this Dell Equallogic has released management software to monitor the performance and health of your SAN (Finally). Alhought it already supported syslog and SNMP for basic monitoring. I personally think this is very nice additional tooling.

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Undocumented Equallogic CLI Commands

Dell Equallogic Improvements