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Perc 3/sc fault tolerance features, Software utilities – Dell 3 User Manual

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PERC 3/SC Features

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PERC 3/SC Fault Tolerance Features

The PERC 3/SC fault tolerance features are shown in Table 4-5.

Software Utilities

The PERC 3/SC software utilities are shown in Table 4-6.

Maximum scatter/gathers

26 elements

Maximum size of I/O requests

6.4 MB in 64 KB stripes

Maximum queue tags per drive

As many as the drive can accept.

Stripe sizes

2 KB, 4 KB, 8 KB, 16 KB, 32 KB,

64 KB, or 128 KB

Maximum number of concurrent

commands

255

Support for multiple initiators

Yes

Ta b l e 4 - 5 . P E R C 3 / S C Fa u l t To l e r a n c e Fe a t u r e s

Specification

Feature

Support for SMART

Yes

Drive failure detection

Automatic

Drive rebuild using hot spares

Automatic

Manual replacement of drives without system

shutdown

Yes

Parity generation and checking

Yes

Ta b l e 4 - 6 . S o f t w a r e U t i l i t i e s Fe a t u r e s

Specification

Feature

Graphical user interface

Yes

Management utility

Yes

Ta b l e 4 - 4 . A r r a y P e r f o r m a n c e Fe a t u r e s

(continued)

Specification

Feature