Annual Report_Abridged - Second Version - FINAL

27 FACILITIES AT IUCAA TheComputerCentre 1) Expansionof thePegasuscluster The IUCAA Computing Facility offers state of the art computing hardware and technology rich environment for IUCAA members, associates and visitors. It also extends an array of specialized H i g h - P e r f o rma n c e C omp u t i n g ( HP C ) environments to the academic community for their research. The hardware and devices currently managed by the computing facility include about 350+ servers and desktops, 100+ laptops, 80+ printers and scanners, three large High-Performance Computing systems and over 9.5 PiB of storage, in addition to diverse equipment deployed for an extensive, high throughput wired and wireless campus-wide network. The number of registered Wi-Fi devices are over 900 and e-mail accounts served by the computing facility are nearly 825. IUCAA provides e-mail services to its members and associates, the total number of accounts being nearly 825. IUCAA has its own registered domain name as “iucaa.in ”, “associates.iucaa.in ”, “ligo-india.in” and “mailman.gw.iucaa.in” . The WAN services are provided by the National Knowledge Network over a 1 Gbps fibre connectivity, with a fall back arrangement over a 50Mbps line fromBSNL. In the year April 2023- March 2024 emphasis was given to implementation of: The Pegasus cluster deployed in 2019 consists of two head nodes, four login nodes, two graphics nodes, four GPU nodes, 2560 compute cores, and 2PiB Parallel File System (PFS) storage. Several new users have been added in the last two years, and all users use the cluster extensively. The average cluster utilisation is more than 90%, resulting in a considerable wait time for many jobs. To cater for the ever-increasing need of computational power for large-scale computational jobs and reduce the computational job's wait time, the Pegasus cluster will be augmented by adding 20 compute nodes IUCAA has a 40 KVA UPS dedicated to supporting the Rack LCPs, Chiller pumps, BMS utilities, Carel setup and power supply to the Utility room and data centre. Due to the increasing load, we needed a Higher-capacity modular UPS system. The old 40 KVA UPS has been replaced with a new 60 KVA UPS system to support the expanding load. IUCAA has dedicated 200TB enterprise class s t o r a g e f o r t h e v i r t u a l i z a t i o n infrastructure(VI) setup (Server Virtualisation and Virtual Desktop Infrastructure). This storage is more than nine years old and has reached the end of life and support with more than 80% of storage capacity utilised, affecting the storage performance. To enable the smooth functionality of the VI setup, better support and performance, the storage has been replaced with the new 200TB unified storage. 2) Replacement of 40KVA UPS systemwith 60 KVAmodularUPS 3) Installationof200TBUnifiedstorage