IBM Storwize V7000 Gen2, Быстрое руководство по установке, Страница: 36 / 76

Installing a control enclosure and one or more expansion
enclosures
If you are installing a control enclosure plus one or more expansion enclosures,
follow these guidelines.
v
A Storwize V7000 system can support up to 1056 drives installed into control
and expansion enclosures. Each enclosure requires 2U of rack space.
v Each assembled enclosure weighs more than 36kg. There must be sufficient
space at the front of the rack for three persons to carry the enclosure safely.
v
Each system can consist of up to four control enclosures. Each control enclosure
can be connected to up to 20 expansion enclosures (two SAS chains of up to 10
expansion enclosures each).
v
For best performance, the total number of expansion enclosures to be installed
should be divided between each control enclosure in the system.
v
Where expansion enclosures are to be installed, distribute them evenly into rack
space above and below the control enclosure that they will connect to, without
leaving gaps between the enclosures. This aids cabling and serviceability.
v
Leave space in the rack for future expansion enclosures, but otherwise install all
enclosures that constitute one system in adjacent or nearby rack space.
v If a rack is to be only partially filled, install the enclosures low enough for the
rack to remain stable and enable easy access to the enclosures for servicing.
Adding an expansion enclosure to an existing system
If you are adding an expansion enclosure to an existing system, follow these
guidelines.
v
You do not need to power off the system. You can add an expansion enclosure
while the system is operational.
v
Add the first expansion enclosure directly below the control enclosure.
v
Add the second expansion enclosure directly above the control enclosure.
v
Add the third expansion enclosure directly below the first.
v Add the fourth expansion directly above the second, and so on.
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Storwize V7000 Gen2: Quick Installation Guide