iSCSI

iSCSI stands for Internet Small Computer System Interface and is pronounced as eye-skuz-ee. It helps in data transfer over intranets, Local Area Network (LAN), Wide Area Network (WAN) and Internet. Using iSCSI, data can be stored and retrieved from independent locations. Data and SCSI commands transmission takes place over IP networks in iSCSI. The SCSI read command gets encapsulated in an IP packet when data from an iSCSI device is read. This IP packet routes and reaches destination, the read command is extracted from the IP packet and interpreted by the iSCSI drive. Encryption can also be performed on data being sent (read command) and decryption on data being received (read command).

iSCSI is bi-directional i.e., data can be sent and received by iSCSI. For IP-based data storage, iSCSI is a networking standard. iSCSI sits on top of TCP. In iSCSI, the data is sent and received in IP packets over TCP network.

Some of the iSCSI drives are as follows:

  • Dulce Systems PRO iSCSI 16 Drive 48 TB Dual Controller 8 Port RAID Array
  • iSCSI 4x1GbE to SATA-II 3U/16-bay RAID
  • iSCSI 1GbE to SATA-II 2U/12-bay RAID

Advantages

  • Distance connectivity
  • Leverages cheaper connectivity
  • Requires no dedicated cabling
  • Cost effective when compared to fiber channel
  • Consolidate data storage for different servers
  • Hot-swappable

During transaction iSCSI protocol does not provide any cryptographic protection data in motion. This gives access to unauthorized person or party to alter the file content or corrupt the file system. But this exposure of files is common to many other protocols which lack cryptographic security.

Initializing iSCSI drives in Windows

  • Decide which drive to make it as iSCSI
  • Right click on My Computer and click on Manage as shown in Fig 1

creating iscsi drive

Fig. 1

  • On left pane, expand Storage and select Disk Management, select MBR and click OK (Initializing the disk) shown in Fig 2.

    creating iscsi drive step 2

    Fig. 2

  • Right click on the drive to be made as iSCSI and select New Simple Volume and click Next, shown in Fig 3.

creating-iscsi-step3

Fig. 3

  • Format the drive by right clicking on the drive, click format, and then check Quick Format and OK.


creating-issci-step4

Fig. 4

  • Now the drive can be accessed as iSCSI drive

NOTE: While adding an array to the storage drive using MS iSCSI Initiator, in Disk Management slightest confusion between the discs may result in data loss from iSCSI drive. 

Related Information

SCSI Recovery
Data loss from SCSI or iSCSI drives can occur due to improper hot swapping the drives, virus attack or abrupt power failure. Data recovery from SCSI drives is possible using Remo Recover (Windows). A quick download and lost data will be recovered.

iSCSI Disk Data Recovery
Data stored on iSCSI disk is susceptible to loss. In such case, it becomes very important to recover the lost disk data. There are applications available which provide solution in such situations. Read the article and understand the process.

Safe and Secure
Safe and Secure
Awards