==================================== Device Supplement 4.3.c: April, 1997 ==================================== OVERVIEW: --------- This device supplement includes no new files. The newly supported devices are all DLT jukeboxes that work correctly with the standard NetWorker code and Microsoft supplied device drivers. See the notes below for any specific information about one of these devices. README.TXT (This file) This file explains what devices we have added support for. ==================================================== Notes on April 1997 Device Supplement for Windows NT for Legato NetWorker for Windows NT version 4.3 ==================================================== Background ----------------------------------------------------------------------- Unlike the various Unix derivatives that Legato supports, Windows NT requires a device driver for Networker to be able to talk to any tape devices. As shipped from Microsoft, NT has a handful of drivers that support a fair number of older tape drives. For this device supplement, you need to use either the standard DLTTAPE.SYS that ships with NT Version 4.0, or the DLTTAPE.SYS supplied with Service Pack 5 or later for NT Version 3.51. These drivers support the following DLT drives: Digital TZ86, TZ87 and DLT2000 (DLTTAPE.SYS) - Cipher T860, L860, TZ86, DLT2000 - DEC THZ02, TZ86, TZ87, DLT2000, DLT2500, DLT2700, DLT4000 DLT4500, DLT4700 - Quantum DLT2000, DLT2500, DLT2700, DLT4000, DLT4500, DLT4700 Drive specific comments ----------------------------------------------------------------------- *** HP Surestore 4115 and 4215 With 1 or 2 DLT4000 drives and 15 tape slots, this device requires the above mentioned DLTTAPE.SYS drivers. This device was tested using both a single-ended SCSI adapter (Adaptec 2944-UW) and a differential SCSI adapter (Adaptec 2944). The device tested by Legato was a pre-production unit and exhibited some significant drive problems that should not be apparent in production units, but which prevented us from performing exhaustive compatibility testing. HP has also tested the device with NetWorker and they are satisfied with the device's performance. *** Breece-Hill Q2 This device can be configured with 1 or 2 drives, which can be DLT2000, DLT4000 or DLT7000s. If your unit has DLT2000 or DLT4000s, use the DLTTAPE.SYS as mentioned above. If your unit has DLT700 drives, you will need to download the January 1997 Device Supplement from Legato's Web site and use that version DLTTAPE.SYS. This requirement may change with newer releases of DLTTAPE.SYS from Microsoft. The version Legato tested was configured with 2 DLT4000 drives, and the device worked as expected in all of our tests. *** EMASS AML/S This large jukebox can support DLT4000, DLT7000, 3490E or 3590 tape drives. As with the Breece-Hill, if you are using DLT4000s, then you can use the previously mentioned DLTTAPE.SYS. DLT700s require the DLTTAPE.SYS from Legato's January 1997 NT Device Supplement, available from Legato's web site. As of this time, we are unaware of any 3490 or 3590 drivers for NT, so AML/S jukeboxes with those drives cannot be used with NT. The unit Legato tested was pre-production, and we encountered some difficulties with resetting the jukebox. One of the two drives would reject the reset command resulting in and incomplete reset when the command 'nsrjb -H' was issued. We will be working with EMASS to resolve this issue, and production units will probably not have any problems. If your AML/S shows this behavior, a workaround is to issue a 'nsrjb -HE' or 'nsrjb -I' command instead of the -H. Since this is usually a one-time process when the jukebox is installed, the inconvenience is minimal. After we inventoried the jukebox, all other operations worked as expected. Note that while the AML/S has a 12 slot Insert/Eject station, NetWorker for NT currently only supports a single slot (the top one) for deposit and withdraw operations.