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 PSTORE |
| PSTORE
is a Unified Multi-Functional and Multi-Protocol Storage
System |
| PSTORE is a Unified Storage System supporting
both SAN and NAS Capabilities. PSTORE is multi-functional
storage system supporting SnapShop, CDP, File Encryption,
Data Tiering, Thin-Provisioning and Sub-Volume functionalities. |
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 What
is Multi-Protocol Storage System? |
Traditionally, Storage Systems
were classified into DAT, NAS, and SAN Technologies.
DAS Storage is storage system that is dedicated
to a single server. SAN Storage is a storage
system that may be used by many servers. NAS
Storage is network storage system that contents
in the storage may be shared among servers.
Multi-Protocol Storage System is a Storage
system that has all the capabilities of NAS,
SAN and DAS within a single storage system. |
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| What
is Multi-Functional Storage System? |
| There exist many
storage solutions that provide special functionaries
to better manage data. Such functionalities
include Backup, DeDuplication, Secuties, SnapShot,
and many more. Multi-Functional Storage System
is storage system that provides such functionalities
built-into the storage itself. |
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| Why
PSTORE? |
The amount of data is exploding in all
areas of enterprises. Not only the size is increasing,
the types of contents are changing and mixed. Thus, single
type of storage system no longer meets the needs of the
users any longer.
Typical uses of storage systems are NAS Storage for Personal
or Group shared files, SAN for DBMS like block data, and
recently, iSCSI Storage for SBC or VDI uses. Therefore,
traditionally, many different type of storage systems
were needed to store different type of data. However,
PSTORE is a Unified Multi-Protocol Storage system that
provides all different technologies in a single system.
Because PSTORE provides all features of SAN, NAS, and
iSCSI in a single unit, no more different storage systems
for each type of data is necessary.
A PSTORE is good enough for File, Database, Virtualization
support, and any other future requirements.
Therefore,
PSTORE reduces total cost of system procurement and operating
costs as well compare to other competition. |
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| PSTORE
Architecture |
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| What
PSTORE can Do? |
- Shared file storage for Team or Department
member
- Virtual OS Image repository for VM-Ware, Citrix Xen,
or KVM
- Traditional DBMS Storage such as Oracle DBMS, MS-SQL
Server
- Storage virtualization of different storage devices
- Storage Remote Disaster Recovery system using CDP functionality |
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| PSTORE
Funationalities |
| NAS Storage |
NFS V.4 or CIFS based file share technology.
NAS Storage can store files and may be shared among many
users..
PSTORE supports CIFS (Common Internet File System) for
MS-Windows users and NFS (Network File System) Version4for
most UNIX Server systems. |
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| iSCSI Storage |
iSCSI Storage is SAN Storage technology
using IP Ethernet. Technically, iSCSI is very similar
to FC-SAN.
Only difference is iSCSI use IP network while
FC-SAN uses special Fibre Channel network.
Because iSCSI uses IP network, it is open to or vulnerable
to tempering.
This most iSCSI communicates using IPSEC
security channel.
PSTORE exports its local DISK subsystem using iSCSI Target
platform to IP Network where Client (or Server) may make
connection using standard iSCSI initiator.
Because iSCSI
is using already existing Ethernet infrastructure, deployment
cost is very low compare to FC-SAN.
Thus, recently iSCSI
is widely being used in Server Virtualization environment. |
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| FC Storage |
FC (Fibre Channel) Storage is traditional
SAN or DAS Storage system using Fibre Channel HBA. FC-SAN
Storageprovides very high performance storage services
to a dedicated server. Multiple Servers may use a sing
FC-SAN Storage.
However, the server cannot share their
data among other servers, but they can use their own region
within the Storage.
PSTORE exports its local DISK system via FC-Target protocol
to a FC-HBA attached server directly or to FC SAN Switch.
Traditionally, the main use of FC-SAN Storage is block
data store like DBMS.
However, recent development in Server
Virtualization makes use of FC-SAN storage for storing
Virtual OS Image repositories.
PSTORE contains 4 8Gbps HBA ports. |
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| Snapshot |
SnapStot is Storage technology of keeping
data image at a point of time. Such an image is called
SnapShot Image.
SnapShot image is useful when Storage
needs to backup its data at certain point.
Administrator
can take SnapShot and operate backup process to the SnapShot
Image.
When needed, the Storage can always roll-back to
the time of taking SnapShot almost instantly.
Clone is a special kind of SnapShot. While SnapShot is
frozen image, Clone is updatable SnapShot.
Thus, with
Clone, System works like operating 2 different kind of
Storage Systems.
PSTORE provide both SnapShot and Clone. PSTORE requires
no reserved disk space for storing SnapShot Images.
Also,
there is no maximum number of SnapShot’s PSTORE can take
as long as there is disk space available. |
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| CDP |
| CDP (Contiguous Data Protection) is a Storage
technology for creating same storage data (or Image) to
remote Storage system. Thus, in case of original Storage
system fails, the remote system can operate storage services
without disrupting service or loosing data. PSTORE provide
Level 1 and Level 2 CDP Services. Level 1 is file level
CDP and Level 2 is block data level services. |
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