`<div dir="ltr">These are 12TB SAS drives (Seagate ST12000NM0027) for data & hot spare. ZIL & L2ARC are 480GB INTEL SSDSC2KG48 SSDs. Everything is left at default for sector size, etc. They were basically prepared for into the pool with a simple fdisk -B /dev/rdsk/drive. <div><br></div><div>Ping never shows loss of connectivity. I ran this for about 5 minutes during a test:</div><div><br></div><div><div> 303 packets transmitted, 303 received, 0% packet loss, time 302021ms</div><div> rtt min/avg/max/mdev = 0.109/0.281/2.881/0.227 ms</div></div><div><br></div><div>CIFS, scp, and rsync do not exhibit the problem. I forgot to mention that local copies on the file server are also as fast as I would expect (~2 min).<div><br></div><div><div> pool: pool0<br></div><div> state: ONLINE</div><div> scan: none requested</div><div>config:</div><div><br></div><div> NAME STATE READ WRITE CKSUM</div><div> pool0 ONLINE 0 0 0</div><div> raidz2-0 ONLINE 0 0 0</div><div> c0t5000C500A612DA93d0 ONLINE 0 0 0</div><div> c0t5000C500957D4A93d0 ONLINE 0 0 0</div><div> c0t5000C500957D4C1Bd0 ONLINE 0 0 0</div><div> c0t5000C500957D25B3d0 ONLINE 0 0 0</div><div> c0t5000C500957D27F3d0 ONLINE 0 0 0</div><div> c0t5000C500957D2553d0 ONLINE 0 0 0</div><div> logs</div><div> mirror-1 ONLINE 0 0 0</div><div> c0t55CD2E414EC0FF43d0s0 ONLINE 0 0 0</div><div> c3t0d0s0 ONLINE 0 0 0</div><div> cache</div><div> c0t55CD2E414EC0FF43d0s1 ONLINE 0 0 0</div><div> c3t0d0s1 ONLINE 0 0 0</div><div> spares</div><div> c0t5000C50095722E27d0 AVAIL </div></div><div><br></div><div><div>iostat:</div><div> extended device statistics <br></div><div> r/s w/s kr/s kw/s wait actv wsvc_t asvc_t %w %b device</div><div> 15.8 57.5 1302.5 5372.3 823.0 0.6 11233.2 8.4 9 9 pool0</div><div> 0.1 19.9 1.7 163.0 0.0 0.0 1.0 0.1 0 0 rpool</div><div> 0.1 10.2 0.9 81.5 0.0 0.0 0.0 0.0 0 0 c1t4d0</div><div> 0.0 10.1 0.8 81.5 0.0 0.0 0.0 0.1 0 0 c1t5d0</div><div> 2.7 19.5 337.8 1359.4 0.4 0.0 16.1 0.5 8 1 c3t0d0</div><div> 1.9 6.0 114.5 442.2 0.0 0.0 0.0 5.0 0 1 c0t5000C500957D27F3d0</div><div> 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.1 0 0 c0t5000C50095722E27d0</div><div> 1.5 6.0 86.2 442.9 0.0 0.0 0.0 4.7 0 1 c0t5000C500957D25B3d0</div><div> 1.5 6.0 78.2 442.5 0.0 0.0 0.0 4.2 0 1 c0t5000C500957D4C1Bd0</div><div> 1.7 6.1 102.4 442.8 0.0 0.0 0.0 4.7 0 1 c0t5000C500A612DA93d0</div><div> 1.6 6.0 86.6 442.5 0.0 0.0 0.0 4.3 0 1 c0t5000C500957D2553d0</div><div> 2.0 5.9 122.2 442.2 0.0 0.0 0.0 5.0 0 1 c0t5000C500957D4A93d0</div><div> 2.9 19.5 374.7 1357.9 0.0 0.0 0.0 1.2 0 1 c0t55CD2E414EC0FF43d0</div><div>c1t4d0 Soft Errors: 0 Hard Errors: 0 Transport Errors: 0 </div><div>Vendor: ATA Product: INTEL SSDSC2KB24 Revision: 0121 Serial No: BTYS817407RE240 </div><div>Size: 240.06GB <240057409536 bytes></div><div>Media Error: 0 Device Not Ready: 0 No Device: 0 Recoverable: 0 </div><div>Illegal Request: 0 Predictive Failure Analysis: 0 </div><div>c1t5d0 Soft Errors: 0 Hard Errors: 0 Transport Errors: 0 </div><div>Vendor: ATA Product: INTEL SSDSC2KB24 Revision: 0121 Serial No: BTYS817409YS240 </div><div>Size: 240.06GB <240057409536 bytes></div><div>Media Error: 0 Device Not Ready: 0 No Device: 0 Recoverable: 0 </div><div>Illegal Request: 0 Predictive Failure Analysis: 0 </div><div>c3t0d0 Soft Errors: 0 Hard Errors: 0 Transport Errors: 0 </div><div>Vendor: ATA Product: INTEL SSDSC2KG48 Revision: 0121 Serial No: BTYM7405027L480 </div><div>Size: 480.10GB <480103981056 bytes></div><div>Media Error: 0 Device Not Ready: 0 No Device: 0 Recoverable: 0 </div><div>Illegal Request: 0 Predictive Failure Analysis: 0 </div><div>c0t5000C500957D27F3d0 Soft Errors: 0 Hard Errors: 0 Transport Errors: 0 </div><div>Vendor: SEAGATE Product: ST12000NM0027 Revision: E001 Serial No: ZJV0VFGX0000J74 </div><div>Size: 12000.14GB <12000138625024 bytes></div><div>Media Error: 0 Device Not Ready: 0 No Device: 0 Recoverable: 0 </div><div>Illegal Request: 0 Predictive Failure Analysis: 0 </div><div>c0t5000C50095722E27d0 Soft Errors: 0 Hard Errors: 0 Transport Errors: 0 </div><div>Vendor: SEAGATE Product: ST12000NM0027 Revision: E001 Serial No: ZJV0S42H0000J75 </div><div>Size: 12000.14GB <12000138625024 bytes></div><div>Media Error: 0 Device Not Ready: 0 No Device: 0 Recoverable: 0 </div><div>Illegal Request: 0 Predictive Failure Analysis: 0 </div><div>c0t5000C500957D25B3d0 Soft Errors: 0 Hard Errors: 0 Transport Errors: 0 </div><div>Vendor: SEAGATE Product: ST12000NM0027 Revision: E001 Serial No: ZJV0VFJV0000J74 </div><div>Size: 12000.14GB <12000138625024 bytes></div><div>Media Error: 0 Device Not Ready: 0 No Device: 0 Recoverable: 0 </div><div>Illegal Request: 0 Predictive Failure Analysis: 0 </div><div>c0t5000C500957D4C1Bd0 Soft Errors: 0 Hard Errors: 0 Transport Errors: 0 </div><div>Vendor: SEAGATE Product: ST12000NM0027 Revision: E001 Serial No: ZJV0P6050000J83 </div><div>Size: 12000.14GB <12000138625024 bytes></div><div>Media Error: 0 Device Not Ready: 0 No Device: 0 Recoverable: 0 </div><div>Illegal Request: 0 Predictive Failure Analysis: 0 </div><div>c0t5000C500A612DA93d0 Soft Errors: 0 Hard Errors: 0 Transport Errors: 0 </div><div>Vendor: SEAGATE Product: ST12000NM0027 Revision: E001 Serial No: ZJV0WCCN0000J80 </div><div>Size: 12000.14GB <12000138625024 bytes></div><div>Media Error: 0 Device Not Ready: 0 No Device: 0 Recoverable: 0 </div><div>Illegal Request: 0 Predictive Failure Analysis: 0 </div><div>c0t5000C500957D2553d0 Soft Errors: 0 Hard Errors: 0 Transport Errors: 0 </div><div>Vendor: SEAGATE Product: ST12000NM0027 Revision: E001 Serial No: ZJV0VFK30000J74 </div></div><div><div>Size: 12000.14GB <12000138625024 bytes></div><div>Media Error: 0 Device Not Ready: 0 No Device: 0 Recoverable: 0 </div><div>Illegal Request: 0 Predictive Failure Analysis: 0 </div><div>c0t5000C500957D4A93d0 Soft Errors: 0 Hard Errors: 0 Transport Errors: 0 </div><div>Vendor: SEAGATE Product: ST12000NM0027 Revision: E001 Serial No: ZJV0VBQ80000R81 </div><div>Size: 12000.14GB <12000138625024 bytes></div><div>Media Error: 0 Device Not Ready: 0 No Device: 0 Recoverable: 0 </div><div>Illegal Request: 0 Predictive Failure Analysis: 0 </div><div>c0t55CD2E414EC0FF43d0 Soft Errors: 0 Hard Errors: 0 Transport Errors: 0 </div><div>Vendor: ATA Product: INTEL SSDSC2KG48 Revision: 0121 Serial No: BTYM740600ZT480 </div><div>Size: 480.10GB <480103981056 bytes></div><div>Media Error: 0 Device Not Ready: 0 No Device: 0 Recoverable: 0 </div><div>Illegal Request: 0 Predictive Failure Analysis: 0 </div></div><div><br></div><div>nomad</div></div></div>
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