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1.5.2 SAN environment
The main aspect of SAN (Storage-Area-Network) is to connect Raid storage thought SAN
switch.
And through the switch access the entire host connected inside the network. The main
difference between DAS and SAN is the existence of a switch. Please kindly see the below
diagram for more detail.
1.5.2.1 Hardware
1. 3.5"/ 2.5" SAS/SATA disks：A08S3-PS supports both SAS and SATA interface Enterprise
level HDD/SSD drives. The A08S3-PS HDD compatibility list is on the Document section of
A08S3-PS's web page.
2. MDC (Meta Data Controller) computer system is designated as an administrator for the
SAN. It keeps track of all the metadata for file read and write requests for the SAN from the
clients. It is highly recommended that the MDC run on a standalone workstation so that
block level transfers on the SAN are not impacted by the MDC performance.
CRITICAL CAUTION:
The MDC is very important in the SAN. If the MDC fails, then Metadata stored
in the MDC is lost or damaged, the data stored in the SAN will no longer be
accessible We strongly recommend a reliable standalone computer system to
run as MDC.
3. Client workstation computers: The HP Z series workstations and Apple MacPro workstations
are popular client systems
4. ExaSAN switch：SW08-Q4 for up to 8 clients and SW16/SWF16 for up to12 clients.
5. Ethernet switch and cables：Required for the MDC to keep track of all file metadata for the
SAN. As it is critical to the performance of the SAN, select reliable Ethernet switch and
cables well protected by manufacturers' warranty to assure the safety and stability of the
SAN network. And absolutely no wireless switching should be associated with the MDC
managing ExaSAN.
1.5.2.2 Software
In most cases, the only third party software you may need to install when using A08S3-PS RAID
system is SAN management software. All A08S3-PS required Firmware/ Driver/ BIOS/ GUI are
included in the DVD ROM inside A08S3-PS package. Also, you can download it from the
website (http://www.accusys.com.tw/support/download_new.htm). The folder path is
\Download&Upload\Download\ExaSAN\For SAN. (Open For SAN folder, you will need the
model number of the switch to find the correct Installer package/ Driver, rather that A08S3-PS.)
If you need Firmware/ BIOS for DAS A08S3-PS, the download path is
\Download&Upload\Download\ExaSAN\For DAS\A08S3-PS)
1. SAN management software：
The key function of SAN management software is controlling read /write access between
the multiple clients to one shared storage pool. We support SAN management software
such as Stornext, MetaSAN, XSAN, BWFS or SANit.
User Guide
1. Introduction
Page 1-16
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