User`s manual

1.4 Setup of drives on the V1-U and V1-UHD

♦ Make sure the drives are on consecutive SCSI ID numbers i.e., 1 and 2 ( and 3 if you have 3 drives).

♦ Power up all drives (Turn on the key of the Data Express)

♦ Go to Option Menu 30 and set it to: “Multi File”, “First Disk” to 1, “Stripe Size” to 2 (or 3), “#RAID

Sets” to 1

♦ Initialize.

♦ The time left in Menu 10 should reflect the total time from all drives

♦ Record. The V1 will record across all drives at the same time.

For units connected to external storage, more than 3 drives can be used.

1.5 Single File System (SFS) Versus Multi-File System (MFS)

The single file system (SFS) is the original file system Doremi has been using in the V1 since the first V1

was introduced in 1996. It is based on opening 1 file for the whole disk and recording on it like a tape

machine. The SFS also allows multiple hard drives to be added in series for higher storage capacities.

The unit would start on the disk with the highest ID number and when full will continue on the lower

SCSI ID number. The SFS creates a header on the disk that has all information about the machine setup

and the clip definitions, so if the unit is turned off, clip definitions will be saved on the disk.

The multi file system (MFS) is the new generation file system that will allow multiple files creation on

the disk. The user will be able to load a file by its filename. The user can still generate clips within a file,

but the clip definitions will not be saved to disk and will be lost upon rebooting

. The MFS allows for

RAID-0 striping across multiple drives and allows for controllers and automation systems that are Louth

or Odetics capable to control the V1 in a broadcast environment. On the MFS all file names are saved

and can be accessed after rebooting the unit by loading them using file names.

With firmware 4.16 and with the use of fast drives like the ST318452 and the ST336752, the V1-U can

be initialized in SFS to benefit from our clip saving capabilities for presentation applications. If the V1-U

is not equipped with these drives or other newer drives that are certified by Doremi, only the MFS should

be used.