2615590 - Dump backup failing with 'WriteFile' error number 665 for SAP ASE for BS

Dumps fail to local Windows filesystem, with errors:

Backup Server: 4.141.2.22: [1] The 'WriteFile' call failed for database/archive device while working on stripe device 'D:\backups\<SID>\data\Manual\<SID>.bkp' with error number 665 (The requested operation could not be completed due to a file system limitatio). Refer to your operating system documentation for further details.
Backup Server: 4.188.1.1: Database <SID>: 152001458 kilobytes (74%) DUMPED.
Backup Server: 4.141.2.86: [5] The 'WriteFile' call failed for database/archive device while working on stripe device 'D:\backups\<SID>\data\Manual\<SID>.bkp' with error number 665 (The requested operation could not be completed due to a file system limitatio). Refer to your operating system documentation for further details.
A00: SYBMULTBUF ERROR: Emulator interprocess communication failed with error state = 16, error code=232, system message=The pipe is being closed.
D00: SYBMULTBUF ERROR: Emulator interprocess communication failed with error state = 9, error code=109, system message=The pipe has been ended.

• SAP Adaptive Server Enterprise (ASE) 15.7 for Business Suite
• SAP Adaptive Server Enterprise (ASE) 16.0 for Business Suite

WriteFile, 665, SYBMULTBUF , KBA , BC-DB-SYB , Business Suite on Adaptive Server Enterprise , BC-SYB-ASE , Sybase ASE Database Platform (non Business Suite) , Problem