Am 2017-03-01 um 23:21 schrieb Bill Kenworthy: > Is there actually a disk on that interface? - I have a system where one > sdx allocated to an unused sata port with nothing attached - it returns > similar information to yours above - check the other entries.
I checked them, sure. to me it seems that there are 2 sg-devices created per port or so. One as ICP-device: does not tell me serials or so, but has an sd-device mapped to it according to sg_map # smartctl -d auto -i /dev/sg2 smartctl 6.4 2015-06-04 r4109 [x86_64-linux-3.18.11-gentoo-smp] (local build) Copyright (C) 2002-15, Bruce Allen, Christian Franke, www.smartmontools.org === START OF INFORMATION SECTION === Vendor: ICP Product: SAS1 Revision: V1.0 User Capacity: 73,284,976,640 bytes [73.2 GB] Logical block size: 512 bytes scsiModePageOffset: response length too short, resp_len=4 offset=4 bd_len=0 scsiModePageOffset: response length too short, resp_len=4 offset=4 bd_len=0 >> Terminate command early due to bad response to IEC mode page A mandatory SMART command failed: exiting. To continue, add one or more '-T permissive' options. --- and the higher ones tell me stuff via smartctl, but I don't know exactly which sd-device they are mapped to: # smartctl -d auto -i /dev/sg11 smartctl 6.4 2015-06-04 r4109 [x86_64-linux-3.18.11-gentoo-smp] (local build) Copyright (C) 2002-15, Bruce Allen, Christian Franke, www.smartmontools.org === START OF INFORMATION SECTION === Vendor: SEAGATE Product: ST373455SS Revision: 0002 User Capacity: 73,407,868,928 bytes [73.4 GB] Logical block size: 512 bytes Rotation Rate: 15015 rpm Logical Unit id: 0x5000c50002448407 Serial number: 3LQ11JWH00009748U10J Device type: disk Transport protocol: SAS (SPL-3) Local Time is: Thu Mar 2 11:06:33 2017 CET SMART support is: Available - device has SMART capability. SMART support is: Enabled Temperature Warning: Enabled --- btw: the serial in this query is a valid one. This is what I am looking for.