4. More capacity
Traditional PC
Mount
2TB
At legacy mode, user
cannot store data when the
mounted hard drive is full
4
5. More capacity
Traditional PC With network storage,
the whole storage pool
is much larger
Insert
2TB Connect Configurable
Raid
Group
5
6. Faster performance
Traditional PC
Data
4 When user wants to write data into the disk,
3 the data is actually written into its blocks. If
2 Write the data is divided into 4 parts, it will take 4
1 steps to finish the writing process.
Block1
Block2
Disk
Block3
Block4
7. Faster performance
Traditional PC
Data
When user wants to write data into the disk,
the data is actually written into its blocks. If
Write the data is divided into 4 parts, it will take 4
steps to finish the writing process.
1
Block1
2 Block2
Disk
3 Block3
4 Block4
8. Faster performance
Traditional PC Network storage with
RAID design
Data
Data 4
3
2 Write
Write 1
1 Block1 Block1 Block2
2 Block2 Block3 Raid0 Block4
Disk
3
Block3 Block5 Block6
4 Block4 Block7 Block8
8
9. Faster performance
Traditional PC Network storage
Data
Data
With RAID 0 design,
Write the speed is two times
Write faster since the data in
parallel write the 4
parts into two disk
1 1 2
Block1 Block1 Block2
2 Block2 3 Block3 Raid0 4 Block4
Disk
3 Block3 Block5 Block6
4 Block4 Block7 Block8
9
10. More redundant
Traditional PC
At legacy mode, once the
Read mounted hard disk is failed, the
host cannot retrieve the data
from the disk any more
Disk
Fail
10
11. More redundant
Network storage with
RAID design
With RAID 1 design, the
data are redundant in two
disks. When one of the File
disk fails, the host can still
retrieve the data from the
working disk.
Disk Raid1 Disk
11
13. Raid Group
Every Qsan storage can create several RAID groups with
different disk numbers & different RAID levels.
Raid 0
Raid 5 Raid 6
Raid 1
13
14. Virtual Disk
Traditional PC
At legacy mode, user can divide
the disk into several partitions
Disk
14
15. Virtual Disk
Traditional PC
VD3
VD2
VD4
VD1
One RAID group can Raid Group
Disk
also have several
virtual disk (VD)
15
16. Virtual Disk
Every Qsan storage can create several RAID groups with
different virtual disk numbers & different RAID levels.
But the virtual disk cannot be created across the RAID
groups.
VD1 VD3 VD6 VD7
Raid 0
VD4 5
Raid Raid 6
VD2 VD5
Raid 1
16
17. LUN
Logical Unit Number
Identify a logical unit
Configure the property when attaching a LUN
VD with LUN 1 RG
Attach LUN 1
VD1
Log on
VD with LUN 0 Attach LUN 0
PD VD2
When user uses the iSCSI VD with LUN 2 Attach LUN 2 VD3
initiator to log on, the virtual
disk can treated as one of the
physical disks in the host
17
18. Attach LUN to VD
Host
LUN ID
Permission
Host 1
Host 1 LUN 0 Attach VD1
Read/Write R/W
e
is ibl
Host 2 Inv Host 2
le LUN 1 Attach VD2
s ib R/O
vi
In
Host 3 *
LUN 2 Attach VD3
R/O
18
19. Attach LUN to VD
Host
LUN ID
Permission
Host 1
Host 1 LUN 0 Attach VD1
R/W
Inv
isi ble
Host 2
Host 2 VD2
LUN 1 Attach
Read Only R/O
e
is ibl
Host 3 Inv *
LUN 2 Attach VD3
R/O
19
20. Attach LUN to VD
Host
LUN ID
Permission
Host 1
Host 1 LUN 0 Attach VD1
R/W
Re Host 2
Host 2 a d VD2
LUN 1 Attach
O
nl R/O
Re y
ad
O nly
Host 3 *
LUN 2 Attach VD3
Read Only
R/O
20
21. P600Q
10GbE iSCSI-6G SAS High Availability Systems Outstanding Performance
Intel Xeon Dual core CPU, Intel® Ethernet QiSOE (Qsan Hardware iSCSI
10GbE offload engine)
Dual Active controllers, and full redundant Up to 640K IOPS, up to 4,000
and hot-pluggable design MB/s throughput
2x 10GbE + 2x 1GbE iSCSI ports per controller
SBB form factor, 4U24/3U16/2U12/2U24
Support RAID 0, 1, 0+1, 3, 5, 6, 10, 30, 50, 60,
JBOD, N-way mirror, online volume
expansion 21
22. F600Q
8GbE FC-6G SAS High Availability Systems Outstanding Performance
Intel Xeon Dual core CPU Up to 650K IOPS, up to 5,000
Dual Active controllers, and full redundant and MB/s throughput
hot-pluggable design
4x 8G FC + 2x 1GbE iSCSI ports per controller
SBB form factor, 4U24/3U16/2U12/2U24
Support RAID 0, 1, 0+1, 3, 5, 6, 10, 30, 50, 60,
JBOD, N-way mirror, online volume expansion
22
Here I introduce what we can configure about the property of the LUN. The property is the host name, the LUN number and the permission. I will take 3 cases for more detail. Case1 If VD1 attach a LUN with the host name of host1, the LUN number is LUN0 and the permission is read and write, so the hosts in the same subnetwork, only the host1 can see the VD1, and the host1 have the permission of reading and writing. The another 2 hosts can not see the VD1. Case2 If VD2 attach a LUN with the host name of host2, LUN number is 1 and the permission is read only, so only host2 can see the VD2, but the host2 only have the permission of reading. Of course, the another 2 hosts also can not see the VD2. Case3 If the VD3 attach a LUN with a host name of a wildcard, LUN number is 2 and the permission is read only, it means, all of the hosts in the same subnetwork can see the VD3, but they only can read it, the write permission is not available.
Here I introduce what we can configure about the property of the LUN. The property is the host name, the LUN number and the permission. I will take 3 cases for more detail. Case1 If VD1 attach a LUN with the host name of host1, the LUN number is LUN0 and the permission is read and write, so the hosts in the same subnetwork, only the host1 can see the VD1, and the host1 have the permission of reading and writing. The another 2 hosts can not see the VD1. Case2 If VD2 attach a LUN with the host name of host2, LUN number is 1 and the permission is read only, so only host2 can see the VD2, but the host2 only have the permission of reading. Of course, the another 2 hosts also can not see the VD2. Case3 If the VD3 attach a LUN with a host name of a wildcard, LUN number is 2 and the permission is read only, it means, all of the hosts in the same subnetwork can see the VD3, but they only can read it, the write permission is not available.
Here I introduce what we can configure about the property of the LUN. The property is the host name, the LUN number and the permission. I will take 3 cases for more detail. Case1 If VD1 attach a LUN with the host name of host1, the LUN number is LUN0 and the permission is read and write, so the hosts in the same subnetwork, only the host1 can see the VD1, and the host1 have the permission of reading and writing. The another 2 hosts can not see the VD1. Case2 If VD2 attach a LUN with the host name of host2, LUN number is 1 and the permission is read only, so only host2 can see the VD2, but the host2 only have the permission of reading. Of course, the another 2 hosts also can not see the VD2. Case3 If the VD3 attach a LUN with a host name of a wildcard, LUN number is 2 and the permission is read only, it means, all of the hosts in the same subnetwork can see the VD3, but they only can read it, the write permission is not available.
