Raid designs in Qsan Storage

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  • 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.
  • Raid designs in Qsan Storage

    1. 1. RAID Designs on Qsan Storage QsanTechnology.com
    2. 2. Raid GroupA group consisted of lots of disks!!Advantages More capacity Faster performance More redundant 2
    3. 3. More capacity Traditional PC Insert 2TB 3
    4. 4. More capacity Traditional PC Mount 2TB At legacy mode, user cannot store data when the mounted hard drive is full 4
    5. 5. More capacity Traditional PC With network storage, the whole storage pool is much larger Insert 2TB Connect Configurable Raid Group 5
    6. 6. Faster performance Traditional PCData 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. 7. Faster performance Traditional PCData 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. 8. Faster performance Traditional PC Network storage with RAID designData 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. 9. Faster performance Traditional PC Network storageData 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. 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. 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
    12. 12. Raid GroupA group consisted of lots of disks. 12
    13. 13. Raid GroupEvery Qsan storage can create several RAID groups withdifferent disk numbers & different RAID levels. Raid 0 Raid 5 Raid 6 Raid 1 13
    14. 14. Virtual Disk Traditional PC At legacy mode, user can divide the disk into several partitions Disk 14
    15. 15. Virtual Disk Traditional PC VD3 VD2 VD4 VD1 One RAID group can Raid Group Disk also have several virtual disk (VD) 15
    16. 16. Virtual DiskEvery Qsan storage can create several RAID groups withdifferent virtual disk numbers & different RAID levels.But the virtual disk cannot be created across the RAIDgroups. VD1 VD3 VD6 VD7 Raid 0 VD4 5 Raid Raid 6 VD2 VD5 Raid 1 16
    17. 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 0PD VD2When user uses the iSCSI VD with LUN 2 Attach LUN 2 VD3initiator to log on, the virtualdisk can treated as one of thephysical disks in the host 17
    18. 18. Attach LUN to VD  Host  LUN ID  Permission Host 1Host 1 LUN 0 Attach VD1 Read/Write R/W e is iblHost 2 Inv Host 2 le LUN 1 Attach VD2 s ib R/O vi InHost 3 * LUN 2 Attach VD3 R/O 18
    19. 19. Attach LUN to VD  Host  LUN ID  Permission Host 1Host 1 LUN 0 Attach VD1 R/W Inv isi ble Host 2Host 2 VD2 LUN 1 Attach Read Only R/O e is iblHost 3 Inv * LUN 2 Attach VD3 R/O 19
    20. 20. Attach LUN to VD  Host  LUN ID  Permission Host 1Host 1 LUN 0 Attach VD1 R/W Re Host 2Host 2 a d VD2 LUN 1 Attach O nl R/O Re y ad O nlyHost 3 * LUN 2 Attach VD3 Read Only R/O 20
    21. 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. 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
    23. 23. U600Q Outstanding Performance  Advanced Protection o Hardware RAID oSnapshot o Support RAID 0, 1, 0+1, 3, 5, 6, oVolume clone 10, 30, 50, 60, JBOD, N-way oBattery Backup Module mirror, online volume expansion, oAntiVirus SSD caching  Storage Efficiency Integrated Backup Solution oThin Provisioning, DeDup, Compression o Amazon S3 Cloud backup oUnifiedAUTH o Remote Replication 23
    24. 24. QsanTechnology.comSales@Qsan.com.tw Thank you very much!

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