Symptom
Flash may become inaccessible immediately following reload of N3K-C3064PQ-10GX.
'copy run start' will not complete while switch is in this state.
Conditions
Issue only manifests during bootup and has only occurred on N3K-C3064PQ-10GX.
After reload, the following logs will occur closely after VDC online message:
%KERN-3-SYSTEM_MSG: Buffer I/O error on device sda4, logical block 7 - kernel
%KERN-3-SYSTEM_MSG: Buffer I/O error on device sda4, logical block 2 - kernel
%KERN-3-SYSTEM_MSG: Buffer I/O error on device sda4, logical block 3 - kernel
%KERN-3-SYSTEM_MSG: Buffer I/O error on device sda4, logical block 395 - kernel
%KERN-3-SYSTEM_MSG: Aborting journal on device sda4. - kernel
%KERN-2-SYSTEM_MSG: ext3_abort called. - kernel
%KERN-2-SYSTEM_MSG: EXT3-fs error (device sda4): ext3_journal_start_sb: Detected aborted journal - kernel
%KERN-2-SYSTEM_MSG: Remounting filesystem read-only - kernel
%KERN-3-SYSTEM_MSG: scsi0 (0:0): rejecting I/O to device being removed - kernel
%KERN-3-SYSTEM_MSG: Buffer I/O error on device sda4, logical block 49160 - kernel
%KERN-3-SYSTEM_MSG: sdb: assuming drive cache: write through - kernel
%KERN-3-SYSTEM_MSG: sdb: assuming drive cache: write through - kernel
%KERN-3-SYSTEM_MSG: FAT: bogus number of reserved sectors - kernel
Workaround
Reload of switch will clear the issue.
Upgrade to fixed release - 6.0(2)U2(1) or later.
