Seagate ST150176LC Uživatelský manuál stáhnout pdf (Strana 3)

epic4 Configuration and Administration Guide

Operating System

epic4 is installed with Redhat 7.3 Linux. As of 25 September 2003, it is fully patched and

updated.

Patches and updates can be applied through the Redhat update service. Running up2date from

a terminal will start the updater, and allow you to select and install any new updates to the

system. The account details for epic4 on Redhat’s Redhat Network (RHN) service at

https://rhn.redhat.com/

are:

Username: xmm-epic

Password: qwerty

To be able to continue to get free support via RHN, it is necessary to respond to a Redhat web-

based questionnaire roughly once every two months. Details of these are emailed to the

account holder, and they only take a minute or two to complete.

There are two PCI cards within epic4 which have been brought over from the old machine: an

Adaptec AIC-7892A U160 Ultra SCSI adapter, and a Maxtor UDMA adapter to support two of

the internal IDE discs that otherwise couldn’t be installed. With this arrangement, there is

support for up to 8 IDE devices within epic4, in addition to two Serial ATA devices that can be

attached to the motherboard connectors. However there is little room left within epic4’s case

for more discs, and any additions will probably require a larger PSU and certainly additional

cooling fans and Y-connectors to provide more power plugs.

The SCSI adapter can be used to attach up to 15 SCSI devices. Currently there are five SCSI

discs housed in a Sun external drive enclosure, and an internally-mounted DDS4 tape drive.

There are several discs to epic4. Table 1 shows details of all the discs (including CD-RW and

DAT DDS4 drives). Refer to figures 1 and 2 for their physical locations within epic4 and the

external disc enclosure.

The external disc enclosure is an old Sun unit left over from epic2 (a Sun Ultra 5) which was

our main workstation prior to epic4, and retired in August 2000. The enclosure can

accommodate up to six Ultra2 SCSI discs. A switch on the back of the unit allows SCSI IDs to

be selected in the range 1-6 or 9-15. For epic4’s use the switch is in the 1-6 range and

shouldn’t be changed.

Manufacturer Type Capacity Device Connection

Maxtor 6Y080L0 76GB hda Mobo IDE 1 (master)

Teac CD-W54E CD-RW hdb Mobo IDE 1 (slave)

Maxtor 7Y250P0 233GB hdc Mobo IDE 2 (master)

Maxtor 7Y250P0 233GB hdd Mobo IDE 2 (slave)

Maxtor 4A250J0 233GB hde PCI UDMA 1 (master)

Maxtor 4A250J0 233GB hdf PCI UDMA 1 (slave)

Seagate ST150176LC 50GB sda SCSI ID 1

Seagate ST150176LC 50GB sdb SCSI ID 2

Seagate ST173404LC 72GB sdc SCSI ID 3

Seagate ST336704LC 36GB sdd SCSI ID 4

Seagate ST318275LC 18GB sde SCSI ID 5

Seagate DDS4 DAT DDS4 rst0 SCSI ID 15

Table 1 - epic4's discs

1 2 3 4 5 6 7 8 ... 18 19

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