Western Digital RE4 1TB SATA Enterprise HDD

[nadrimajstor]

Regarding falling out from array. What system are you using? Chances of cougar-point sata bug maybe? http://jakkul.blogspot.com/2013/01/h...tem-might.html

It was few years back, when WD introduced raid edition series. I've jumped on wagon and fell off hard. Don't touch anything that have a fancy suffix in the model name

[qubix]

Two 1TB WD1003FBYX hdds in linux software RAID-1, ext4 with default settings over LVM. Modern E3 xeon system. Tested with sysbench. You can use the commands below and sysbench to test your system for comparison.

Regarding falling out from array. What system are you using? Chances of cougar-point sata bug maybe? http://jakkul.blogspot.com/2013/01/h...tem-might.html

# sysbench --test=fileio --file-total-size=25G --file-test-mode=rndrw run ; sysbench --test=fileio --file-total-size=25G --file-test-mode=seqrewr run ; sysbench --test=fileio --file-total-size=25G --file-test-mode=seqrd run
		sysbench 0.4.12:  multi-threaded system evaluation benchmark

		Running the test with following options:
		Number of threads: 1

		Extra file open flags: 0
		128 files, 200Mb each
		25Gb total file size
		Block size 16Kb
		Number of random requests for random IO: 10000
		Read/Write ratio for combined random IO test: 1.50
		Periodic FSYNC enabled, calling fsync() each 100 requests.
		Calling fsync() at the end of test, Enabled.
		Using synchronous I/O mode
		Doing random r/w test
		Threads started!
		Done.

		Operations performed:  6000 Read, 4000 Write, 12800 Other = 22800 Total
		Read 93.75Mb  Written 62.5Mb  Total transferred 156.25Mb  (1.7178Mb/sec)
		  109.94 Requests/sec executed

		Test execution summary:
		    total time:                          90.9599s
		    total number of events:              10000
		    total time taken by event execution: 47.7267
		    per-request statistics:
			 min:                                  0.01ms
			 avg:                                  4.77ms
			 max:                                267.61ms
			 approx.  95 percentile:              11.26ms

		Threads fairness:
		    events (avg/stddev):           10000.0000/0.00
		    execution time (avg/stddev):   47.7267/0.00

		sysbench 0.4.12:  multi-threaded system evaluation benchmark

		Running the test with following options:
		Number of threads: 1

		Extra file open flags: 0
		128 files, 200Mb each
		25Gb total file size
		Block size 16Kb
		Periodic FSYNC enabled, calling fsync() each 100 requests.
		Calling fsync() at the end of test, Enabled.
		Using synchronous I/O mode
		Doing sequential rewrite test
		Threads started!
		Done.

		Operations performed:  0 Read, 1638400 Write, 128 Other = 1638528 Total
		Read 0b  Written 25Gb  Total transferred 25Gb  (102.04Mb/sec)
		 6530.65 Requests/sec executed

		Test execution summary:
		    total time:                          250.8786s
		    total number of events:              1638400
		    total time taken by event execution: 247.5210
		    per-request statistics:
			 min:                                  0.01ms
			 avg:                                  0.15ms
			 max:                               1874.94ms
			 approx.  95 percentile:               0.05ms

		Threads fairness:
		    events (avg/stddev):           1638400.0000/0.00
		    execution time (avg/stddev):   247.5210/0.00

		sysbench 0.4.12:  multi-threaded system evaluation benchmark

		Running the test with following options:
		Number of threads: 1

		Extra file open flags: 0
		128 files, 200Mb each
		25Gb total file size
		Block size 16Kb
		Periodic FSYNC enabled, calling fsync() each 100 requests.
		Calling fsync() at the end of test, Enabled.
		Using synchronous I/O mode
		Doing sequential read test
		Threads started!
		Done.

		Operations performed:  1638400 Read, 0 Write, 0 Other = 1638400 Total
		Read 25Gb  Written 0b  Total transferred 25Gb  (110.27Mb/sec)
		 7057.13 Requests/sec executed

		Test execution summary:
		    total time:                          232.1623s
		    total number of events:              1638400
		    total time taken by event execution: 230.8322
		    per-request statistics:
			 min:                                  0.00ms
			 avg:                                  0.14ms
			 max:                                478.75ms
			 approx.  95 percentile:               0.88ms

		Threads fairness:
		    events (avg/stddev):           1638400.0000/0.00
		    execution time (avg/stddev):   230.8322/0.00

[nadrimajstor]

Phoronix: Western Digital RE4 1TB SATA Enterprise HDD

Benchmarks up this afternoon are of a Western Digital RE4 WD1003FBYX, an internal enterprise hard drive, being tested from Ubuntu 13.04 with the Linux 3.8 kernel. This Linux disk drive comparison was done with an EXT4 file-system and other disk benchmarks are available from different solid-state and traditional rotating hard drives.

http://www.phoronix.com/vr.php?view=18546

I wonder how dose it perform as a member of linux software raid?
Last time I used RE2 disks I had to replace them all with standard desktop edition.
All of them still work fine in windows, however they had a nasty habit to keep failing from MD mirror without any apparent reason.

[phoronix]

Phoronix: Western Digital RE4 1TB SATA Enterprise HDD

Benchmarks up this afternoon are of a Western Digital RE4 WD1003FBYX, an internal enterprise hard drive, being tested from Ubuntu 13.04 with the Linux 3.8 kernel. This Linux disk drive comparison was done with an EXT4 file-system and other disk benchmarks are available from different solid-state and traditional rotating hard drives.

http://www.phoronix.com/vr.php?view=18546