How Is Fibre Channel Different From Iscsi?
Fibre Channel and iSCSI each have a distinct place in the IT infrastructure as SAN alternatives to DAS. Fibre Channel generally provides high performance and high availability for business-critical applications, usually in the corporate data center. In contrast, iSCSI is generally used to provide SANs for business applications in smaller regional or departmental data centers.
When Should I Deploy Fibre Channel Instead Of Iscsi?
For environments consisting of high-end servers that require high bandwidth or data center environments with business-critical data, Fibre Channel is a better fit than iSCSI. For environments consisting of many midrange or low-end servers, an IP SAN solution often delivers the most appropriate price/performance.
What is a typical SAN consist of
- Fabric Switch
- FC Controllers
- JBODs
What command in linux will give you the driver version of a hardware device
dmesg
How do you speed up storage performance
add a flash cache
What is deduplication and compression
deduplication: Redundant data blocks replaced with a pointer
compression: Algorithms used to save space
What is the default iSCSI port
3260
What is iSNS
DNS for iSCSI
How to test storage?
- Various IO sizes, bandwidth, latency
- Random/ Sequential profiles
- Block sizes 4k-128k
What linux command manages iscsi?
iscsiadm
What is RAID in Windows
It is a strategy for building fault tolerance and increase the storage capacity. On separate drives it allows you to combine one or more volumes so that they are accessed by a single drive letter
