Pioneer DRM-6NX manual Managing Hard Disk Caching, Caching Settings

Hard Disk Caching

The Network Cache Changer DRN-6NX has hard disk for caching which means that discs in the Changer may be copied to a hard disk drive. The caching system involves directory caching and complete mirroring. It allows the networked discs to run at hard disk speed.

The DRM-6NX Changer also supports hard disk caching for externally connected CD/DVD-ROM drives. See page 10.

Disc Changers

Because of the relatively long time needed to change discs in a disc changer, the data transfer rate may become unacceptably low when two users simultaneously attempt to read different discs. Hard disk caching significantly increases the access speed if you are using changers.

Persistent Use

The hard disk caching facility allows you to make the cached discs persistent, (i.e. allow users to access the copies even if the original discs are ejected from the drives). Persistent discs that are currently not inserted will always remain cached on the hard disk. This means that if the hard disk becomes full, the DRM-6NX does not overwrite data which is no longer available on to an inserted disc.

Capacity

The number of discs that can be cached depends on the size of the hard disk as well as the size of the individual discs. For example, a 4.3 Gbyte hard disk allows six 650 Mbyte CD-ROMs to be cached. However, if each disc contains only 100 Mbyte, about 40 discs can be cached on the hard disk.

NOTE:

7This product does not support cachingDVD discs.

Managing Hard Disk Caching

You manage the hard disk caching facility via the DRM- 6NX web interface.

Caching Settings

To specify the settings, follow these steps:

1.Start your Web browser

2.Enter the name or Internet address of your DRM-6NX in the location/address field

3.Click Administration

4.Click Edit on the This sever page (The Server Settings dialog box appears)

5. Open the Caching page

6.Specify caching level: None – No caching

Normal – Only the directory structure will be cached on new CDs

Mirror – Complete caching ; the hard disk contains a complete copy of the mirrored disc. This method allows faster user access, but takes more time to complete when a new disc is inserted. If the disc drives are frequently changed then automatic mirroring is not recommended.

As it takes between 2 and 20 minutes to copy one CD-ROM, performance decreases if the DRM-6NX is constantly busy copying discs to a hard disk drive. Persistent – Complete caching

The persistent disc will be accessible to the users even if the original disc is ejected from the drive.

NOTES:

7You can change the default settings for particular discs later on the Discs & Drives page.

7If an access request is received from the network while the DRM- 6NX is caching (copying discs to the hard disk), the network request is given priority, to allow data transmission to take place. During this time, the caching is interrupted, and resumes about one minute after complection of the network access.

7The caching level of factory default is Mirror.

If you want to set the normal caching mode, you have to change the caching level before you insert the magazine.

7.Click Set then click Close to exit the setup menu

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