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| Sun System Handbook - ISO 3.4 June 2011 Internal/Partner Edition | ||
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Solution Type FAB (standard) Sure Solution 1017446.1 : Sun StorEdge 3310/3510 Array May Stop Processing I/O When More Than 2 Hosts Send SCCLI Commands.
PreviouslyPublishedAs 228550 Product Sun StorageTek 3310 SCSI Array Sun StorageTek 3510 FC Array Bug Id <SUNBUG: 6331390> Impact The in-band interface of the SE3x10 is a single-threaded interface that uses the SCSI send/receive diagnostic method for communication. This requires a receive diagnostic command to complete the operation initiated by a send diagnostic command. While the requested operation is in process any subsequent send diagnostic commands received by the controller will be rejected with an "overlapped command" error. When multiple sccli commands are received, a constant overlapped error condition may occur which may result in loss of I/O and application failure. This issue occurs in sccli version 2.1.1 and firmware 4.1.3 and below: sccli: selected device /dev/rdsk/c8t600C0FF000000000000F261B6C04F600d0s2 [SUN StorEdge 3510 SN#000F26] sccli> version sccli version 2.1.1 sccli> sccli> sho inq Vendor: SUN Product: StorEdge 3510 Revision: 413C Peripheral Device Type: 0xd NVRAM Defaults: 413C 3510 S442F Bootrecord version: 1.31H Serial Number: 000F26 Page 80 Serial Number: 000F2600000000FFFFFFFF Page 83 Logical Unit Device ID: 600C0FF000000000000F260000000000 Page 83 Target Device ID: 206000C0FF000F26 Page D0 Fibre Channel Address: 9F (id 44) Page D0 Node Name: 206000C0FF000F26 Page D0 Port Name: 256000C0FFC00F26 Ethernet Address: 00:C0:FF:00:0F:26 Device Type: Primary sccli> Symptoms Users may see the following messages in /var/adm/messages file: Oct 1 05:15:38 hlr902 scsi: [ID 243001 kern.warning] WARNING: /scsi_vhci (scsi_vhci0): Oct 1 05:15:38 hlr902 /scsi_vhci/ssd@g600c0ff0000000000823f96437aedd00 (ssd2): Command Timeout on path /pci@1d,700000/pci@1/SUNW,qlc@4/fp@0,0 (fp0) Oct 1 05:15:38 hlr902 scsi: [ID 107833 kern.warning] WARNING: /scsi_vhci/ssd@g600c0ff0000000000823f96437aedd00 (ssd2): Oct 1 05:15:38 hlr902 SCSI transport failed: reason 'timeout': retrying command Users may see 100 percent busy when I/O to RAID is blocked: hlr902# iostat -Dxc 5 extended device statistics cpu device r/s w/s kr/s kw/s wait actv svc_t %w %b us sy wt id sd0 0.2 0.2 1.5 2.2 0.0 0.0 19.0 0 0 0 1 5 93 sd1 0.0 3.2 0.6 260.5 0.0 0.2 56.7 0 1 sd30 0.0 0.0 0.0 0.0 0.0 0.0 0.8 0 0 ssd2 1.0 9.8 19.7 111.0 0.0 0.1 10.4 0 10 nfs1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0 0 extended device statistics cpu device r/s w/s kr/s kw/s wait actv svc_t %w %b us sy wt id sd0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0 0 1 2 72 25 sd1 0.0 2.4 0.0 15.6 0.0 0.0 3.1 0 1 sd30 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0 0 ssd2 0.0 604.6 0.0 0.0 0.0 1.0 1.7 0 100 nfs1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0 0 extended device statistics cpu device r/s w/s kr/s kw/s wait actv svc_t %w %b us sy wt id sd0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0 0 0 2 83 15 sd1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0 0 sd30 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0 0 ssd2 0.0 604.2 0.0 0.0 0.0 1.4 2.3 0 100 nfs1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0 0 extended device statistics cpu device r/s w/s kr/s kw/s wait actv svc_t %w %b us sy wt id sd0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0 0 0 2 82 15 sd1 0.0 0.8 0.0 8.0 0.0 0.0 11.4 0 0 sd30 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0 0 ssd2 0.0 604.2 0.0 0.0 0.0 2.0 3.3 0 100 nfs1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0 0 extended device statistics cpu device r/s w/s kr/s kw/s wait actv svc_t %w %b us sy wt id sd0 0.0 0.2 0.0 0.4 0.0 0.0 8.0 0 0 0 2 85 13 sd1 0.0 0.2 0.0 1.6 0.0 0.0 7.8 0 0 sd30 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0 0 ssd2 0.0 604.2 0.0 0.0 0.0 2.0 3.3 0 100 nfs1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0 0
Root Cause
Workaround Prior to sccli version 2.3 - build 12, limit sccli command sources to two or fewer hosts. Resolution Final resolution is to upgrade the sccli software to version 2.3 - build 12 or later. This software can be obtained via the following URL: http://www.sun.com/download/products.xml?id=4436c6a0 Modification History Date: 24-MAY-2006
Previously Published As 102348 Internal Comments Related Information
Internal Contributor/submitter vickie.williams-eli@sun.com Internal Eng Business Unit Group KE Authors Internal Eng Responsible Engineer kevin.doan@sun.com Internal Services Knowledge Engineer sean.hassall@sun.com Internal Escalation ID 1-12161170 Internal Kasp FAB Legacy ID 102348 Internal Sun Alert & FAB Admin Info Critical Category: Significant Change Date: Avoidance: Workaround Responsible Manager: null Original Admin Info: null Product_uuid 3db30178-43d7-4d85-8bbe-551c33040f0d|Sun StorageTek 3310 SCSI Array 58553d0e-11f4-11d7-9b05-ad24fcfd42fa|Sun StorageTek 3510 FC Array Attachments This solution has no attachment |
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