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It's Linux baby...

Once you ssh into the TS-109 Pro, you can find out all sorts of interesting things about its Linux configuration.

The kernel is Linux version 2.6.12.6-arm1 (root@NASARM2)  compiled with gcc version 3.4.4 - at least for the firmware I am running.

/proc/cpuinfo tells us quite a bit about the hardware:

Processor: ARM926EJ-Sid(wb) rev 0 (v5l)
BogoMIPS: 332.59
Features: swp half thumb fastmult
CPU implementer : 0x41
CPU architecture: 5TEJ
CPU variant: 0x0
CPU part: 0x926
CPU revision: 0
Cache type: write-back
Cache clean: cp15 c7 ops
Cache lockdown: format C
Cache format: Harvard
I size: 32768
I assoc: 1
I line length: 32
I sets: 1024
D size: 32768
D assoc: 1
D line length: 32
D sets          : 1024

Hardware        : MV-88fxx81
Revision        : 0000
Serial          : 0000000000000000

And as expected, /proc/meminfo gives us a lot of information about how the NAS uses its 128MB of memory:

MemTotal:       126240 kB
MemFree:         45468 kB
Buffers:         11924 kB
Cached:          37112 kB
SwapCached:          0 kB
Active:          38644 kB
Inactive:        33364 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:       126240 kB
LowFree:         45468 kB
SwapTotal:      530136 kB
SwapFree:       530136 kB
Dirty:              12 kB
Writeback:           0 kB
Mapped:          31288 kB
Slab:             5836 kB
CommitLimit:    593256 kB
Committed_AS:   175388 kB
PageTables:        740 kB
VmallocTotal:   385024 kB
VmallocUsed:      8484 kB
VmallocChunk:   376432 kB

We are able to poke around all over the place, if someone felt so inclined: