SimpleTech ZeusIOPS Manual descargar pdf (Pagina 73)

Zeus

IOPS

3.5-Inch Fibre Channel Solid State Drive 71

MODE PAGE 00H - VENDOR UNIQUE THRESHOLD VALUES

Since the pages cannot be saved, the PS (Parameters Saveable) bit will be 0 for MODE SENSE. This

bit is reserved for the MODE SELECT command.

SFP (Subpage Format) will be set to 0 to indicate that this is a page_0 mode page format.

The Low Free Pages Threshold is based on the percentage of free blocks. This figure is calculated

on a per channel level. If this limit is reached on any channel, it may trigger an informational exception

report.

Write, Read, and Erase error thresholds are represented as a percentage of how many commands

have failed with regard to the total number of commands. For example, the Write threshold will be

compared to the total number of Write Errors divided by the total number of Write commands,

multiplied by 100. The Erase failure rate will also be calculated according to the total erase failures.

The Read error rate will be compared using the same method, but only the total Read failures will be

used, and not Reads that have completed albeit with ECC correction applied. These fields are

checked at 5 minute intervals using the data for the last 5 minutes.

ECC Correction Thresholds are expressed as a percentage with regard to the total number of Read

commands. For example, the ECC Correction Threshold is compared against the number of ECC

corrections divided by the total number of Read commands, multiplied by 100. This field is checked

on a 5 minute interval using data for the last 5 minutes. The temperature is also checked on a 5

minute level.

Bit

Byte76543210

0 PS = 0 SFP = 0 Page Code = 00h

1 Page Length = 6

2 Low Free Pages Threshold

3 Write Error Rate Threshold

4 Read Error Rate Threshold

5 Erase Error Rate Threshold

Temperature Threshold

7 ECC Correction Threshold

1 2 ... 68 69 70 71 72 73 74 75 76 77 78 ... 109 110

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SimpleTech ZeusIOPS Manual Pagina 73