Sun-microsystems SUN STOREDGETM 5310 NAS Bedienungsanleitung PDF herunterladen (Seite 342)

7-6 Sun StorEdge 5310 NAS Troubleshooting Guide • December 2004

3. Rotate the bezel towards the front.

4. Remove the bezel by pressing the hinges in and pulling it out.

FIGURE 7-3 Sun StorEdge 5310 NAS Expansion Unit

7.6.2 Memory

Caution – Before touching or replacing any component inside the server, disconnect

all external cables and follow the instructions in “Safety: Before You Remove the

Cover” on page 7-2 and “Removing and Replacing the Cover” on page 7-2. Always

place the server on a grounded ESD pad and wear a properly grounded antistatic

wrist strap.

The main board supports DDR-266 compliant registered ECC DIMMs operating at

266 MHz.

Each system contains four registered one gig DIMMS.

ECC single-bit errors are corrected and multiple-bit errors are detected.

■ Single bit error correction: If a single bit error is detected, the ECC logic generates

a new “recovered” 64 bit QWord with a pattern that corresponds to the originally

received 8 bit ECC parity code. The corrected data is returned to the requestor

(the processor or PCI master).

■ Multiple-bit error detection: Additional errors within the same QWord constitute

a multiple-bit error, which is unrecoverable. When a multiple-bit memory error is

detected, a non-maskable interrupt (NMI) is issued that instructs the system to

shut down to avoid data corruption. Multiple-bit errors are very rare.

Note – NMI is not currently supported.

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Sun-microsystems SUN STOREDGETM 5310 NAS Bedienungsanleitung Seite 342