HP c-Class Solaris manual Introduction

Page 10

•Sufficient RAM to operate—The amount of RAM that the driver requires to manage the NAND flash varies according to the block size you select when formatting the device (filesystem format, not low-level format). For a virtual machine using an IO Accelerator directly (using PCI pass-through), consult the user guide for the installed operating system. The following table lists the amount of RAM required per 100GB of storage space, using various block sizes. The amount of RAM used in driver version 3.0 is significantly less than the amount used in version 1.2.x.

Average block size

RAM usage for each 80

RAM usage for each 100

Minimum system RAM

(bytes)

GB IO Accelerator

GB IO Accelerator

requirement for 320 GB

 

(Megabytes)

(Megabytes)

MezzIO Accelerator*

 

 

 

 

8,192

250

280

1 GB

4,096

400

530

1.6 GB

2,048

750

1,030

3 GB

1,024

1,450

2,000

5.8 GB

512

2,850

3,970

11.4 GB

Average block size

Minimum system RAM

Minimum system RAM

Minimum system RAM

(bytes)

requirement for 640 GB

requirement for 785 GB

requirement for 1.2 TB

 

MezzIO Accelerator*

MezzIO Accelerator*

MezzIO Accelerator*

 

 

 

 

8,192

2 GB

2.2 GB

3.4 GB

4,096

3.2 GB

4.2 GB

6.4 GB

2,048

6 GB

8.1 GB

12.4 GB

1,024

11.6 GB

15.7 GB

24 GB

512

22.8 GB

31.2 GB

47.6 GB

*For IO Accelerator use only. Additional RAM is needed for system operating system and applications.

HP PCIe IO Accelerator Duo requirements

In addition to the IO Accelerator cooling and RAM requirements listed in the previous table, the IO Accelerator Duo requires at least:

•A PCIe Gen1 x8 slot or a PCIe Gen2 x4 slot

•A minimum of a full-height, half-length slot with a x8 physical connection. For systems with PCI 1.1, all eight signaling lanes must be active for full IO Accelerator Duo performance. For systems with PCIe 2.0, only four signaling lanes must be active for full performance.

NOTE: With driver version 3.1.0 and later, the driver detects in the BIOS if the PCIe slot supports a 75W power draw. If the slot supports up to 75W, the IO Accelerator device draws up to that amount of power. However, if an external power cable is used, power is only supplied by that cable.

To verify whether a slot is supplying 75W, view the system logs or use the fio-pci-checkutility.

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Contents HP IO Accelerator 3.2.3 Solaris User Guide Page Contents Upgrading devices Contents summary About this guideOverview IntroductionProduct naming Performance attributes IO Accelerator capacity 320GB 640GB Models AJ878B BK836ARequired operating environment Supported firmware revisionsIntroduction Introduction Installation overview Software installationInstalling the software and utilities $ pfexec remdrv iomemory-vsl Loading the IO Accelerator VSL facility driverUpgrading the firmware Dev/rdsk/c*d0p0Using the device as a swap Enabling PCIe powerConfiguring a ZFS pool Command-line utilities MaintenanceMaintenance tools Enabling PCIe power overrideEnabling the override parameter Options iomemory-vsl externalpoweroverride=value Uninstalling IO Accelerator VSL and utilitiesUnmanaged shutdown issues Disabling auto attachEnabling the IO Accelerator VSL Disabling the IO Accelerator VSL$ pfexec remdrv iomemo Introduction to monitoring and managing devices Monitoring and managing devicesManagement tools Example conditions to monitor Device LED indicators Disabling Dvfs Performance and tuningIntroduction to performance and tuning Limiting Apci C-statesFio-attach UtilitiesUtilities reference Fio-attach device optionsFio-beacon device options Fio-beaconFio-bugreport Tmp/fio-bugreport-20100121.173256-sdv9ko.tar.bz2Fio-detach Fio-detach device options Fio-formatFio-format options device Fio-status Fio-status device optionsFfield Fio-sure-erase Fio-sure-erase options device Fio-update-iodrive Fio-update-iodrive options iodriveversion.fff Domainbusslot.func Nand flash and component failure Monitoring IO Accelerator healthHealth metrics Health monitoring techniques ZFS pools and health monitoring Using module parametersEsxcfg-module --server server-name iomemory-vsl -g Upgrading devices Upgrade procedureUpgrading devices for IO Accelerator VSL 2.x.x to $ modprobe iomemory-vsl Upgrading devices Resources Subscription serviceFor more information HP contact information Support and other resourcesBefore you contact HP Customer Self RepairRéparation par le client CSR Riparazione da parte del cliente Reparaciones del propio cliente Reparo feito pelo cliente Support and other resources Support and other resources Support and other resources Acronyms and abbreviations Documentation feedback Index Index
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