Running 11.2.0.2.0 on OEL5.7(x86_64), I've got a bunch of ISCSI mounts attached to an ASM diskgroup, and am in the process of walking the diskgroup over from one SAN to another. All is well until I try to drop a disk:
<blockquote><pre>SQL> alter diskgroup data drop disk '/dev/disk/by-path/ip-10.1.7.210:3260-iscsi-iqn.2001-05.com.equallogic:0-8a0906-dfa328d08-e570000016f4e8a2-apsuat2-data-1-lun-0';
alter diskgroup data drop disk '/dev/disk/by-path/ip-10.1.7.210:3260-iscsi-iqn.2001-05.com.equallogic:0-8a0906-dfa328d08-e570000016f4e8a2-apsuat2-data-1-lun-0'
*
ERROR at line 1:
ORA-01948: identifier's name length (126) exceeds maximum (30)</pre></blockquote>
Obviously some parameter in the ASM config is set to 30 and needs to be considerably longer, but I've googled around and still can't find the answer. We commonly use /dev/disk/by-path/*
I'm wondering - is it possible that we missed a param when we upgraded this machine from 11.1.0.7? But mainly that param is the one I'm looking for.