Thin Reclaim is failing with EMC VMAX 40K running firmware 5876
Article ID: 100009077
Updated On:
Description
Error Message
Cause
vxdisk reclaim start the reclamation process on the storage by issuing IOCTL WRITE SAME (16), Looking from the DMP Level 9 Logs it's observed that I/O error (5) is returned from storage in response of WRITE SAME (16) IOCTL because the length in blocks being requested by vxdmp to reclaim is larger than what storage support. EMC Symmetrix Storage support length of C000h blocks with WRITE SAME IOCTL which equal to 24 MB.
Jul 10 16:09:19 System1 vxdmp: [ID 702086 kern.notice] NOTICE: VxVM vxdmp V-5-0-0 dmp_write_same: dmpdev 0x120/68 offset = 190200 len = 7fe00 status =5
Jul 10 16:09:19 System1 vxdmp: [ID 702086 kern.notice] NOTICE: VxVM vxdmp V-5-0-0 dmp_write_same: dmpdev 0x120/68 offset = 210000 len = 1ffe00 status =5
Jul 10 16:09:19 System1 vxdmp: [ID 702086 kern.notice] NOTICE: VxVM vxdmp V-5-0-0 dmp_write_same: dmpdev 0x120/68 offset = 41b200 len = 1f4a00 status =5
Jul 10 16:09:19 System1 vxdmp: [ID 702086 kern.notice] NOTICE: VxVM vxdmp V-5-0-0 dmp_write_same: dmpdev 0x120/68 offset = 60fc00 len = 200400 status =5
Jul 10 16:09:19 System1 vxdmp: [ID 702086 kern.notice] NOTICE: VxVM vxdmp V-5-0-0 dmp_write_same: dmpdev 0x120/68 offset = 810000 len = 1ffe00 status =5
Jul 10 16:09:19 System1 vxdmp: [ID 702086 kern.notice] NOTICE: VxVM vxdmp V-5-0-0 dmp_write_same: dmpdev 0x120/68 offset = a0fe00 len = 1ffe00 status =5
Jul 10 16:09:19 System1 vxdmp: [ID 702086 kern.notice] NOTICE: VxVM vxdmp V-5-0-0 dmp_write_same: dmpdev 0x120/68 offset = c0fc00 len = 200400 status =5
Jul 10 16:09:19 System1 vxdmp: [ID 702086 kern.notice] NOTICE: VxVM vxdmp V-5-0-0 dmp_write_same: dmpdev 0x120/68 offset = e10000 len = 1ffe00 status =5
Jul 10 16:09:19 System1 vxdmp: [ID 702086 kern.notice] NOTICE: VxVM vxdmp V-5-0-0 dmp_write_same: dmpdev 0x120/68 offset = 100fe00 len = 1ffe00 status =5
Jul 10 16:09:19 System1 vxdmp: [ID 702086 kern.notice] NOTICE: VxVM vxdmp V-5-0-0 dmp_write_same: dmpdev 0x120/68 offset = 120fc00 len = 200400 status =5
Resolution
Currently no solution is available for this issue, Veritas Engineering is working on creating an enhanced ASL version to address this issue and it's expected that new ASL will be released in first week of September 2012.
Applies To
Storage Foundation SF6.0 /6.0RP1 , SF5.1SP1 with Latest RP and latest Veritas Array Support Library Package (VRTSaslapm)
EMC Symmetrix Array running Firmware 5876
Issue/Introduction
