Digital Equipment EK-SFXXS-SG-003, Service Manual

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1–2 Introduction
Viewing the DECarray from the front, note that the SF-series storage
enclosures and magazine tape ISEs are arranged in the DECarray cabinet
as follows (Figure 1–1):
• The DECarray has four levels, each with two storage enclosure
positions. The levels are numbered from the bottom up. Viewing from
the front, odd-numbered positions are on the left, and even-numbered
positions are on the right.
Table 1–1 DECarray Storage Positions
Level Left Position Right Position
1 1 2
2 3 4
3 5 6
4 7 8
• Levels 1, 2, and 4 are reserved for SF-series storage enclosures only.
Storage enclosure upgrades are installed into these levels in the
following order: position 1, 2, 3, 4, 7, and 8.
• Level 3 is reserved for magazine tape ISEs. Magazine tape ISE
upgrades are installed first in position 5 then in position 6.
NOTE
The position numbers are visible on the right and left chassis side
rails when the front and rear doors of the storage array are open.
Specifications for the DECarray are shown in Table 1–2.