No, it's not a VM server and IOPS are haven't been an issue. It's a backup server so the data is generally streaming sequential. %util never hits more than 50% and the avgqu usually is around 1 or less. It's a bit higher now than normal as it's doing a big read operation but performance has never been a problem. It easily does 600-1200MB/sec. Until it locks up that is. 09:31:53 up 1 day, 33 min, 3 users, load average: 5.95, 5.96, 6.69 avg-cpu: %user %nice %system %iowait %steal %idle 19.15 0.00 11.43 8.74 0.00 60.68 Device: rrqm/s wrqm/s r/s w/s rsec/s wsec/s avgrq-sz avgqu-sz await svctm %util sdc 13.80 3.80 100.40 7.20 7897.80 823.40 81.05 1.71 16.17 3.16 34.02 sda 12.60 2.60 97.00 6.60 7984.20 822.80 85.01 2.09 20.32 3.83 39.64 sdd 13.20 3.00 102.40 6.80 7977.40 822.80 80.59 1.82 16.35 3.24 35.42 sde 12.60 3.40 101.20 5.00 7883.20 823.40 81.98 1.78 16.65 3.44 36.50 sdf 11.40 4.40 104.80 5.20 8013.60 823.80 80.34 1.85 16.54 3.19 35.10 sdb 13.80 2.80 104.20 6.60 8002.00 823.40 79.65 1.91 17.30 3.35 37.16 sdg 12.40 3.00 103.00 6.40 8108.40 823.80 81.65 1.92 17.39 3.32 36.28 sdh 12.80 3.20 102.60 7.20 8057.00 823.20 80.88 1.97 17.64 3.41 37.44 sdi 14.80 3.40 107.80 6.60 8044.40 823.20 77.51 1.88 16.71 3.09 35.38 sdj 14.20 3.00 106.20 6.40 8005.00 822.80 78.40 1.90 16.82 3.21 36.10 sdl 14.80 6.00 133.00 19.20 8535.00 816.00 61.44 2.22 14.58 2.52 38.28 sdk 13.20 2.60 134.20 14.60 8470.60 817.40 62.42 2.13 14.15 2.48 36.96 sdq 17.80 3.20 122.80 14.20 8373.60 816.40 67.08 2.04 14.90 2.68 36.68 sdp 14.80 3.60 123.60 11.20 8379.80 817.60 68.23 2.21 16.14 2.90 39.08 sds 17.80 3.60 125.40 14.60 8346.80 815.20 65.44 2.17 15.64 2.71 37.98 sdm 14.20 2.00 138.20 14.40 8496.60 814.80 61.02 2.38 15.66 2.53 38.56 sdt 15.40 2.80 127.00 16.80 8351.80 816.80 63.76 2.13 15.03 2.59 37.24 sdu 14.80 5.80 127.80 15.20 8886.80 801.00 67.75 1.80 12.23 2.40 34.26 sdo 15.20 4.60 131.60 14.60 8416.60 815.20 63.15 2.15 14.67 2.53 37.02 sdn 14.80 3.60 129.20 13.60 8414.60 816.60 64.64 2.27 16.18 2.61 37.22 sdv 11.80 7.20 118.80 22.40 8840.60 799.00 68.27 2.21 15.45 2.83 39.90 sdx 12.60 6.00 116.00 20.40 8730.80 798.80 69.87 2.00 14.58 2.93 40.02 sdw 15.20 7.80 127.20 25.20 8707.60 797.60 62.37 1.84 11.43 2.44 37.22 sdr 17.60 2.20 125.60 14.80 8377.00 813.20 65.46 2.05 14.67 2.71 37.98 sdaa 15.20 6.00 123.40 11.80 8771.00 801.80 70.80 2.03 14.82 2.90 39.18 sdz 14.80 6.20 117.00 12.20 8827.00 802.60 74.53 1.96 15.18 2.95 38.10 sdab 15.20 6.80 124.20 11.40 8761.20 801.20 70.52 1.92 13.99 2.73 36.96 sdy 15.20 7.00 108.80 11.80 8654.20 801.60 78.41 1.88 15.70 3.02 36.42 sdaf 13.20 3.00 120.00 11.80 8570.00 632.60 69.82 2.03 15.46 3.07 40.42 sdag 14.80 3.00 120.80 16.40 8673.60 632.00 67.83 1.92 14.19 2.86 39.22 sdae 15.20 2.80 115.00 12.80 8583.80 632.20 72.11 1.95 15.15 3.10 39.66 sdac 13.40 6.80 117.00 20.20 8767.20 799.60 69.73 2.09 14.05 2.92 40.04 sdah 14.80 3.20 115.40 15.40 8447.80 631.80 69.42 2.03 15.33 3.07 40.10 sdad 15.20 6.20 118.80 11.20 8862.40 801.80 74.34 1.97 14.24 2.93 38.14 sdai 14.60 3.00 116.00 10.80 8296.80 631.40 70.41 2.08 16.34 3.14 39.82 sdak 15.80 3.00 114.80 11.80 8467.80 631.40 71.87 1.98 15.64 3.17 40.14 sdam 17.40 3.80 106.80 17.20 8501.40 631.20 73.65 1.87 14.75 3.11 38.62 sdaq 13.20 2.40 110.80 10.00 8391.40 634.80 74.72 2.00 16.62 3.16 38.18 sdan 15.00 3.20 113.60 12.80 8564.80 632.00 72.76 1.90 14.37 3.16 39.96 sdat 13.00 2.60 105.60 12.20 8310.80 633.80 75.93 2.05 17.45 3.32 39.16 sdar 12.00 2.20 112.20 10.60 8416.20 635.20 73.71 2.08 16.92 3.32 40.74 sday 18.20 3.60 130.60 6.20 8239.80 621.00 64.77 1.79 13.52 2.57 35.22 sdav 13.40 2.00 105.00 10.20 8233.60 634.00 76.98 1.82 15.93 3.14 36.16 sdaj 15.00 2.80 121.20 12.00 8420.20 631.20 67.95 1.98 14.89 2.88 38.40 sdbb 18.40 2.80 121.40 7.00 8341.60 619.80 69.79 1.89 14.90 2.77 35.54 sdao 11.00 2.40 116.60 12.60 8361.00 633.00 69.61 2.01 15.73 2.84 36.68 sdax 12.20 2.40 123.40 9.80 8437.80 632.00 68.09 1.71 13.15 2.49 33.12 sdbe 15.20 3.00 135.60 4.40 8306.80 621.20 63.77 1.92 13.77 2.57 35.92 sdba 18.40 2.60 119.20 6.40 8239.60 620.60 70.54 1.89 14.96 2.89 36.24 sdbj 13.00 3.40 113.20 2.80 7978.20 617.40 74.10 1.97 17.12 2.84 32.94 sdbc 18.40 2.40 128.40 5.00 8427.00 620.20 67.82 1.81 13.47 2.63 35.02 sdbh 18.20 2.40 127.60 6.40 8241.00 620.80 66.13 1.75 12.88 2.54 34.00 sdaz 18.00 2.80 122.60 6.60 8240.00 621.00 68.58 1.84 13.79 2.73 35.30 sdbg 17.00 2.40 131.00 5.00 8327.00 621.00 65.79 1.80 12.96 2.58 35.12 sdbd 17.40 2.80 121.40 5.00 8309.80 621.00 70.66 2.14 17.57 3.23 40.78 sdap 12.60 2.20 109.80 11.40 8353.60 633.40 74.15 1.88 15.65 3.19 38.68 sdbl 12.20 2.80 112.00 3.80 7788.20 616.80 72.58 1.99 16.58 3.12 36.08 sdas 10.80 2.20 110.80 10.80 8234.80 634.60 72.94 1.96 16.40 3.10 37.74 sdbi 14.40 3.20 111.40 3.20 7929.80 617.00 74.58 2.02 17.94 3.09 35.36 sdal 14.20 3.40 111.60 11.40 8407.40 631.80 73.49 2.01 16.49 3.42 42.06 sdbm 12.40 2.60 107.60 4.00 7736.40 617.00 74.85 1.88 17.00 2.91 32.48 sdbf 18.40 3.00 125.80 4.60 8166.60 621.20 67.39 1.94 14.92 2.83 36.88 sdbn 11.80 3.60 113.40 3.20 7752.40 617.20 71.78 1.97 16.62 3.09 36.00 sdbo 13.00 3.80 112.80 3.20 7763.00 617.20 72.24 1.87 16.05 3.03 35.20 sdbq 13.80 3.40 107.20 3.20 7750.60 617.40 75.80 2.06 18.16 3.50 38.68 sdbk 12.80 3.20 108.80 3.00 7743.20 617.20 74.78 1.95 17.03 2.99 33.44 sdbp 14.00 2.80 112.60 3.60 7750.20 617.60 72.01 1.98 17.10 3.10 35.98 sdaw 13.20 2.80 112.80 8.40 8315.20 632.20 73.82 1.72 14.36 2.78 33.64 sdau 13.00 4.00 108.00 10.80 8206.80 633.60 74.41 1.83 15.48 3.12 37.02 sdbr 13.40 3.40 113.60 2.80 7863.80 617.40 72.86 2.06 16.99 3.26 37.94 sdbs 16.80 2.60 118.80 5.40 8010.40 618.20 69.47 1.95 15.69 3.14 39.00 sdbt 17.60 3.00 113.40 5.40 8032.20 618.00 72.81 1.88 15.72 3.17 37.68 sdbu 15.20 3.00 112.60 5.40 7910.60 618.40 72.28 1.98 16.58 3.12 36.86 sdbv 13.40 3.00 115.20 4.80 7942.80 618.40 71.34 2.01 16.57 3.20 38.40 sdbw 15.80 3.20 115.20 4.60 8037.00 618.40 72.25 1.90 15.53 3.16 37.88 sdbx 17.80 2.80 113.00 5.40 7992.80 618.80 72.73 1.89 15.68 3.01 35.64 sdbz 16.20 3.40 113.60 4.60 7851.00 618.40 71.65 1.88 15.82 3.09 36.48 sdby 18.80 3.60 112.20 4.20 7869.60 619.00 72.93 1.86 15.85 2.89 33.66 sdcc 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 sdce 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 sdcd 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 sdcb 17.40 2.00 112.40 5.80 8086.00 617.60 73.63 2.04 17.21 3.34 39.46 sdca 16.40 3.20 116.20 4.80 8053.40 618.20 71.67 1.93 16.21 3.01 36.48 sdcf 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 sdcg 0.00 0.00 0.00 7.00 0.00 47.20 6.74 0.00 0.34 0.06 0.04 sdch 0.00 0.00 0.00 7.00 0.00 47.20 6.74 0.00 0.37 0.06 0.04 sdci 0.00 0.00 31.80 178.20 930.00 42341.60 206.06 0.68 3.25 0.43 9.02 sdcj 0.00 0.00 34.60 164.80 1034.60 38989.00 200.72 0.64 3.19 0.43 8.66 sdck 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 sdcl 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 [6:0:0:0] disk HITACHI HUS723030ALS640 A222 /dev/sda [6:0:1:0] disk HITACHI HUS723030ALS640 A222 /dev/sdb [6:0:2:0] disk HITACHI HUS723030ALS640 A222 /dev/sdc [6:0:3:0] disk HITACHI HUS723030ALS640 A222 /dev/sdd [6:0:4:0] disk HITACHI HUS723030ALS640 A222 /dev/sde [6:0:5:0] disk HITACHI HUS723030ALS640 A222 /dev/sdf [6:0:6:0] disk HITACHI HUS723030ALS640 A222 /dev/sdg [6:0:7:0] disk HITACHI HUS723030ALS640 A222 /dev/sdh [6:0:8:0] disk HITACHI HUS723030ALS640 A222 /dev/sdi [6:0:9:0] disk HITACHI HUS723030ALS640 A222 /dev/sdj [6:0:10:0] disk HITACHI HUS723030ALS640 A222 /dev/sdk [6:0:11:0] disk HITACHI HUS723030ALS640 A222 /dev/sdl [6:0:12:0] disk HITACHI HUS723030ALS640 A222 /dev/sdm [6:0:13:0] disk HITACHI HUS723030ALS640 A222 /dev/sdn [6:0:14:0] disk HITACHI HUS723030ALS640 A222 /dev/sdo [6:0:15:0] disk HITACHI HUS723030ALS640 A222 /dev/sdp [6:0:16:0] disk HITACHI HUS723030ALS640 A222 /dev/sdq [6:0:17:0] disk HITACHI HUS723030ALS640 A222 /dev/sdr [6:0:18:0] disk HITACHI HUS723030ALS640 A222 /dev/sds [6:0:19:0] disk HITACHI HUS723030ALS640 A222 /dev/sdt [6:0:20:0] disk HITACHI HUS723030ALS640 A222 /dev/sdu [6:0:21:0] disk HITACHI HUS723030ALS640 A222 /dev/sdv [6:0:22:0] disk HITACHI HUS723030ALS640 A222 /dev/sdw [6:0:23:0] disk HITACHI HUS723030ALS640 A222 /dev/sdx [6:0:24:0] enclosu LSI CORP SAS2X36 0717 - [6:0:25:0] disk HITACHI HUS723030ALS640 A222 /dev/sdy [6:0:26:0] disk HITACHI HUS723030ALS640 A222 /dev/sdz [6:0:27:0] disk HITACHI HUS723030ALS640 A222 /dev/sdaa [6:0:28:0] disk HITACHI HUS723030ALS640 A222 /dev/sdab [6:0:29:0] disk HITACHI HUS723030ALS640 A222 /dev/sdac [6:0:30:0] disk HITACHI HUS723030ALS640 A222 /dev/sdad [6:0:31:0] disk HITACHI HUS723030ALS640 A222 /dev/sdae [6:0:32:0] disk HITACHI HUS723030ALS640 A222 /dev/sdaf [6:0:33:0] disk HITACHI HUS723030ALS640 A222 /dev/sdag [6:0:34:0] disk HITACHI HUS723030ALS640 A222 /dev/sdah [6:0:35:0] disk HITACHI HUS723030ALS640 A222 /dev/sdai [6:0:36:0] disk HITACHI HUS723030ALS640 A222 /dev/sdaj [6:0:37:0] disk HITACHI HUS723030ALS640 A222 /dev/sdak [6:0:38:0] disk HITACHI HUS723030ALS640 A222 /dev/sdal [6:0:39:0] disk HITACHI HUS723030ALS640 A222 /dev/sdam [6:0:40:0] disk HITACHI HUS723030ALS640 A222 /dev/sdan [6:0:41:0] disk HITACHI HUS723030ALS640 A222 /dev/sdao [6:0:42:0] disk HITACHI HUS723030ALS640 A222 /dev/sdap [6:0:43:0] disk HITACHI HUS723030ALS640 A222 /dev/sdaq [6:0:44:0] disk HITACHI HUS723030ALS640 A222 /dev/sdar [6:0:45:0] disk HITACHI HUS723030ALS640 A222 /dev/sdas [6:0:46:0] disk HITACHI HUS723030ALS640 A222 /dev/sdat [6:0:47:0] disk HITACHI HUS723030ALS640 A222 /dev/sdau [6:0:48:0] disk HITACHI HUS723030ALS640 A222 /dev/sdav [6:0:49:0] enclosu LSI CORP SAS2X36 0717 - [7:0:0:0] disk HITACHI HUS723030ALS640 A222 /dev/sdaw [7:0:1:0] disk HITACHI HUS723030ALS640 A222 /dev/sdax [7:0:2:0] disk HITACHI HUS723030ALS640 A222 /dev/sday [7:0:3:0] disk HITACHI HUS723030ALS640 A222 /dev/sdaz [7:0:4:0] disk HITACHI HUS723030ALS640 A222 /dev/sdba [7:0:5:0] disk HITACHI HUS723030ALS640 A222 /dev/sdbb [7:0:6:0] disk HITACHI HUS723030ALS640 A222 /dev/sdbc [7:0:7:0] disk HITACHI HUS723030ALS640 A222 /dev/sdbd [7:0:8:0] disk HITACHI HUS723030ALS640 A222 /dev/sdbe [7:0:9:0] disk HITACHI HUS723030ALS640 A222 /dev/sdbf [7:0:10:0] disk HITACHI HUS723030ALS640 A222 /dev/sdbg [7:0:11:0] disk HITACHI HUS723030ALS640 A222 /dev/sdbh [7:0:12:0] disk HITACHI HUS723030ALS640 A222 /dev/sdbi [7:0:13:0] disk HITACHI HUS723030ALS640 A222 /dev/sdbj [7:0:14:0] disk HITACHI HUS723030ALS640 A222 /dev/sdbk [7:0:15:0] disk HITACHI HUS723030ALS640 A222 /dev/sdbl [7:0:16:0] disk HITACHI HUS723030ALS640 A222 /dev/sdbm [7:0:17:0] disk HITACHI HUS723030ALS640 A222 /dev/sdbn [7:0:18:0] disk HITACHI HUS723030ALS640 A222 /dev/sdbo [7:0:19:0] enclosu LSI CORP SAS2X36 0717 - [7:0:20:0] disk HITACHI HUS723030ALS640 A222 /dev/sdbp [7:0:21:0] disk HITACHI HUS723030ALS640 A222 /dev/sdbq [7:0:22:0] disk HITACHI HUS723030ALS640 A222 /dev/sdbr [7:0:23:0] disk HITACHI HUS723030ALS640 A222 /dev/sdbs [7:0:24:0] disk HITACHI HUS723030ALS640 A222 /dev/sdbt [7:0:25:0] disk HITACHI HUS723030ALS640 A222 /dev/sdbu [7:0:26:0] disk HITACHI HUS723030ALS640 A222 /dev/sdbv [7:0:27:0] disk HITACHI HUS723030ALS640 A222 /dev/sdbw [7:0:28:0] disk HITACHI HUS723030ALS640 A222 /dev/sdbx [7:0:29:0] disk HITACHI HUS723030ALS640 A222 /dev/sdby [7:0:30:0] disk HITACHI HUS723030ALS640 A222 /dev/sdbz [7:0:31:0] disk HITACHI HUS723030ALS640 A222 /dev/sdca [7:0:32:0] disk HITACHI HUS723030ALS640 A222 /dev/sdcb [7:0:33:0] disk HITACHI HUS723030ALS640 A222 /dev/sdcc [7:0:34:0] disk HITACHI HUS723030ALS640 A222 /dev/sdcd [7:0:35:0] disk HITACHI HUS723030ALS640 A222 /dev/sdce [7:0:36:0] disk HITACHI HUS723030ALS640 A222 /dev/sdcf [7:0:37:0] enclosu LSI CORP SAS2X36 0717 - [8:0:0:0] disk ATA INTEL SSDSA2BZ10 6PB1 /dev/sdcg [8:0:1:0] disk ATA INTEL SSDSA2BZ10 6PB1 /dev/sdch [9:0:0:0] disk ATA OCZ-VERTEX4 1.5 /dev/sdci [9:0:1:0] disk ATA OCZ-VERTEX4 1.5 /dev/sdcj [9:0:2:0] disk ATA INTEL SSDSC2CW18 400i /dev/sdck [9:0:3:0] disk ATA INTEL SSDSC2CW18 400i /dev/sdcl pool: datastore state: ONLINE scan: none requested config: NAME STATE READ WRITE CKSUM datastore ONLINE 0 0 0 raidz2-0 ONLINE 0 0 0 d69 ONLINE 0 0 0 d10 ONLINE 0 0 0 d65 ONLINE 0 0 0 d12 ONLINE 0 0 0 d30 ONLINE 0 0 0 d20 ONLINE 0 0 0 d5 ONLINE 0 0 0 d60 ONLINE 0 0 0 d59 ONLINE 0 0 0 d42 ONLINE 0 0 0 raidz2-1 ONLINE 0 0 0 d34 ONLINE 0 0 0 d38 ONLINE 0 0 0 d68 ONLINE 0 0 0 d66 ONLINE 0 0 0 d15 ONLINE 0 0 0 d81 ONLINE 0 0 0 d4 ONLINE 0 0 0 d63 ONLINE 0 0 0 d14 ONLINE 0 0 0 d11 ONLINE 0 0 0 raidz2-2 ONLINE 0 0 0 d55 ONLINE 0 0 0 d50 ONLINE 0 0 0 d67 ONLINE 0 0 0 d36 ONLINE 0 0 0 d40 ONLINE 0 0 0 d26 ONLINE 0 0 0 d1 ONLINE 0 0 0 d56 ONLINE 0 0 0 d6 ONLINE 0 0 0 d29 ONLINE 0 0 0 raidz2-3 ONLINE 0 0 0 d21 ONLINE 0 0 0 d7 ONLINE 0 0 0 d64 ONLINE 0 0 0 d48 ONLINE 0 0 0 d58 ONLINE 0 0 0 d53 ONLINE 0 0 0 d13 ONLINE 0 0 0 d27 ONLINE 0 0 0 d46 ONLINE 0 0 0 d57 ONLINE 0 0 0 raidz2-4 ONLINE 0 0 0 d19 ONLINE 0 0 0 d61 ONLINE 0 0 0 d41 ONLINE 0 0 0 d23 ONLINE 0 0 0 d52 ONLINE 0 0 0 d16 ONLINE 0 0 0 d25 ONLINE 0 0 0 d28 ONLINE 0 0 0 d18 ONLINE 0 0 0 d43 ONLINE 0 0 0 raidz2-5 ONLINE 0 0 0 d71 ONLINE 0 0 0 d82 ONLINE 0 0 0 d78 ONLINE 0 0 0 d3 ONLINE 0 0 0 d24 ONLINE 0 0 0 d33 ONLINE 0 0 0 d37 ONLINE 0 0 0 d35 ONLINE 0 0 0 d74 ONLINE 0 0 0 d75 ONLINE 0 0 0 raidz2-6 ONLINE 0 0 0 d22 ONLINE 0 0 0 d79 ONLINE 0 0 0 d77 ONLINE 0 0 0 d17 ONLINE 0 0 0 d72 ONLINE 0 0 0 d39 ONLINE 0 0 0 d76 ONLINE 0 0 0 d8 ONLINE 0 0 0 d45 ONLINE 0 0 0 d31 ONLINE 0 0 0 raidz2-7 ONLINE 0 0 0 d84 ONLINE 0 0 0 d51 ONLINE 0 0 0 d32 ONLINE 0 0 0 d2 ONLINE 0 0 0 d73 ONLINE 0 0 0 d49 ONLINE 0 0 0 d54 ONLINE 0 0 0 d44 ONLINE 0 0 0 d47 ONLINE 0 0 0 d83 ONLINE 0 0 0 logs mirror-8 ONLINE 0 0 0 log1 ONLINE 0 0 0 log2 ONLINE 0 0 0 cache cach1 ONLINE 0 0 0 cach2 ONLINE 0 0 0 spares d70 AVAIL d80 AVAIL d9 AVAIL d62 AVAIL errors: No known data errors