Users Guide

PERC card specifications
The table below lists and describes the different PERC cards that comprise the PERC 10 series and their specifications:
Table 1. PERC cards
Feature PERC H345 PERC H740P PERC H745 PERC H745P MX PERC H840
RAID levels 0, 1, 10 0, 1, 5, 6, 10, 50, 60 0, 1, 5, 6, 10, 50, 60 0, 1, 5, 6, 10, 50, 60 0, 1, 5, 6, 10, 50, 60
Non-RAID Yes Yes Yes Yes N/A
Enclosures per port Not applicable Not applicable Not applicable Not applicable 4
Processor Dell adapter SAS
RAID-on-chip, 16-
port with LSI 3416
chipset
Dell adapter SAS
RAID-on-chip, 8-
port with LSI 3508
chipset
Dell adapter SAS
RAID-on-chip, 16-
port with LSI 3516
chipset
Dell adapter SAS
RAID-on-chip, 16-
port with LSI 3516
chipset
Dell adapter SAS
RAID-on-chip, 8-
port with LSI 3508
chipset
Battery backup unit No Yes Yes Yes Yes
eHBA No Yes Yes Yes No
LKM security No Yes Yes Yes Yes
Enterprise key
manager mode
No Yes Yes No No
Non-volatile cache No Yes Yes Yes Yes
Cache memory N/A 8 GB DDR4 2133
Mhz cache
4 GB DDR4 2133
Mhz cache
8 GB DDR4 2133
Mhz cache
8 GB DDR4 2133
Mhz cache
Cache function Write through and
no read ahead
Write back, write
through, no read
ahead, and read
ahead
Write back, write
through, no read
ahead, and read
ahead
Write back, write
through, no read
ahead, and read
ahead
Write back, write
through, no read
ahead, and read
ahead
Max no of PDs in
RAID mode
63 64 64 240 240
Max no of VDs in
RAID mode
32 64 64 240 240
Max no of disks in
eHBA mode
N/A 240 - combination
of virtual disks and
Non-Raid disks.
240 - combination
of virtual disks and
Non-Raid disks.
240 - combination
of virtual disks and
Non-Raid disks.
N/A
Max no of VDs per
disk group
16 16 16 16 16
Hot swap devices
supported
Yes Yes Yes Yes Yes
Hardware XOR
engine
N/A Yes Yes Yes Yes
Online capacity
expansion
Yes in operating
system only
Yes Yes Yes Yes
Dedicated and
global hot spare
Yes Yes Yes Yes Yes
Auto-configure N/A RAID 0 RAID 0 RAID 0 RAID 0
Drives types 3 Gbps SATA, 6
Gbps SATA/SAS,
and 12 Gbps SAS
3 Gbps SATA, 6
Gbps SATA/SAS,
and 12 Gbps SAS
3 Gbps SATA, 6
Gbps SATA/SAS,
and 12 Gbps SAS
3 Gbps SATA, 6
Gbps SATA/SAS,
and 12 Gbps SAS
6 Gbps SAS, and 12
Gbps SAS
VD strip size 64kB 64kB, 128kB,
256kB, 512kB, 1MB
64kB, 128kB,
256kB, 512kB, 1MB
64kB, 128kB,
256kB, 512kB, 1MB
64kB, 128kB,
256kB, 512kB, 1MB
Overview 9