Virtual TapeServer 6.04.02 for NonStop Servers Release Notes
Known Issues | 19
 SecureVTS encryption operations performed when no key database backup 
host is configured causes the web interface to remain busy for up to 10 minutes. 
If SecureVTS encryption operations (creating an encrypted tape, encrypting an already-
existing tape) are attempted when no Key Database Backup/Restore Hosts are configured, 
the web interface will appear busy for up to 10 minutes before displaying an error 
message. (TL-1158)
WORKAROUND: Check backup host configurations within the SecureVTS section of the 
interface to ensure that backups are configured and successful.
 Empty labeled encrypted cartridges may show a compression ratio. An encrypted 
cartridge that is labeled and then decrypted will show 0 size and a compression ratio. Re-
encrypting that cartridge will continue to show a compression ratio. This does not reflect 
the compression ratio that a cartridge will display once data is written to that cartridge 
and can safely be ignored. (TL-1155)
 Empty, unlabeled encrypted cartridges may show a compression ratio. If a blank 
cartridge is labeled and then encrypted, the cartridge shows a compression ratio. If a 
blank cartridge is encrypted and then labeled, it does not show a compression ratio. The 
file sizes of the two cartridges are slightly different. This does not reflect the compression 
ratio that a cartridge will display once data is written to that cartridge and can safely be 
ignored. (TL-1088)
 Encrypting a cartridge after it is created can take much longer than encrypting 
a cartridge during creation. After-the-fact encryption can take up to eight times longer 
than on-the-fly encryption. (TL-1150)
 Attempting to mount a cartridge that cannot be decrypted causes repeated 
mount requests. If a NonStop server requests the mount of an encrypted cartridge that 
VTS cannot decrypt, VTS continually attempts to mount the cartridge every six seconds. 
(TL-1136)
 Removing a key generator may cause a delay before cartridges can be 
encrypted again. After removing a key generator, if there are any key generators left, it 
may take up to 5 minutes before cartridges can be encrypted again. (TL-1121)
 If the RSA key of a remote host changes, SecureVTS operations to that host may 
fail. Typically, the RSA key will not change unless the operating system on that host is 
reinstalled. If the RSA key does change, attempts to backup a key database to the host 
with the changed RSA key may fail. Attempts to delete and re-add that backup host may 
also fail. (TL-1074)
WORKAROUND: Manually delete the entry for the remote host from the  
/home/bill/.ssh/known_hosts file.
 If the SecureVTS local backup file is written to /home/bill/, an error message is 
written to the ks_backup.log file. The error message indicates a permission problem 
when attempting to change the file's ownership. This error may safely be ignored. (TL-
1073)
 Adding a key database backup host fails but lists erroneous error message if too 
many characters are specified in the fields. When adding a key database backup 
host and entering very long host names (such as 256 characters), user names (256 
characters), or destinations (512 characters), adding the host will fail but the message 
may indicate that the server was not responding. (TL-1056)










