Prior to founding KQInfotech, Anand Mitra was a Principal Software Engineer at Symantec, chartered with the task of scoping and designing a support for windows on Xen based Fault Tolerance. He has worked for 6.5 years on the clustered filesystem product VxFS & CFS. He had architected the online upgrade for Veritas File system and designed the write fastpath which improved performance of the file system. He has also designed the integration of Power6 (powerPC) CPU feature of storage keys for the Veritas storage stack. He co-maintained technical relations with IBM for special proprietary kernel interfaces within AIX and designed a filesystem pre-allocation API for IBM DB2 database.
PuneTech Blog
Virtualization is essentially some kind of abstraction of computing
resources. There are various kinds of abstractions. Files provide an
abstraction of disk blocks into linear space. Storage virtualization
products, like logical volume manager, virtualize multiple storage devices
into single storage and vice versa.
Processes are also a form of virtualization. A process provides an illusion
to the programmer that she has the entire address space at her disposal and
has exclusive control of hardware resources. Multiplexing of these resources
between all the processes on the system is done by the OS, transparent to the
process. This concept has been universally adopted.
All multi-programming operating systems are characterized by executing
instructions in at least two privilege levels i.e. unprivileged for user
programs, and privileged for the operating s... (more)
Prior to founding KQInfotech, Anand Mitra was a Principal Software Engineer at Symantec, chartered with the task of scoping and designing a support for windows on Xen based Fault Tolerance. He has worked for 6.5 years on the clustered filesystem product VxFS & CFS. He had architected the online upgrade for Veritas File system and designed the write fastpath which improved performance of the file system. He has also designed the integration of Power6 (powerPC) CPU feature of storage keys for the Veritas storage stack. He co-maintained technical relations with IBM for special proprietary kernel interfaces within AIX and designed a filesystem pre-allocation API for IBM DB2 database.
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