29th Annual Report (2016-17)

129 The CZTI POC maintains a webpage http://astrosat.iucaa.in/czti/?q=grb , in which all the GRB detections by the CZTI are reported. It also maintains another publicly available page http://www.iucaa.in/~astrosat/czti_dqr/ , that reports detailed logs and the data quality of all CZTI observations. The Computing Facility in IUCAA continues to offer the state-of-the-art computing hardware and technology rich mobile work space to IUCAAmembers, associates and visitors. It also extends an array of specialized High Performance Computing (HPC) environments to academic community for their research. The hardware and devices include 315 servers and desktops, 72 laptop computers, 60 printers and scanners, two large HPC systems and over a PetaByte of storage, in addition to diverse equipments deployed for an extensive, high throughput wired and wireless campus- wide network. The number of registered Wi-Fi devices is over 700, and e-mail accounts served by the computing facility amount to nearly 500. SinceAugust 2015, the e-mail addresses of IUCAAstaff members, and since February 2016, that of IUCAAAssociates are on IUCAA owned domain iucaa.in , and associates.iucaa.in, respectively. This is to ensure that regardless of ISP (Internet Service Provider) in use, the e-mail domain address will remain unchanged, and thus, withdrawing its dependency on the ISP. IUCAAhas been utilizing 1 Gbps fromNational Knowledge Network (NKN), the primary ISP (since January 2012) and 50Mbps from TATA Communication, the secondary ISP (since October 2015) for internet usage. These two independent link paths have been configured to provide redundancy and robustness to theWAN connectivity. In the year 2016-17, emphasis was given to identifying suitable: (i) Purpose built backup appliance (PBBA) through POC (Proof of Concept). Much awaited PBBAarrived, onMarch 24, 2017, in the formof Dell-EMCData-Domain 6800, the back-end backup storage hardware and Net-worker, the front end backup software. The implementation part is still in progress. (ii) Technology upgrade for the Ruckus wireless solution was implemented in November 2010. Subsequently, in October 2016, POCwas carried out and then 8 ZF7762 outdoor Access Points (Aps) were partially replaced with T301s APs. An order for the newest generation of APs, has been placed in March 2017 to revamp the entire Wi-Fi Network. The new proposed Wi-Fi network adheres to 802.11ac Wave 2, the newest version, which is built on first-generation 802.11ac technology, and delivers faster data rates and has the ability to communicate with four different clients simultaneously, instead of one at a time. The Computer Centre continues to provide technical support to visitors, project students, and IUCAAassociates, and carry out the day- to-day functions that include: 1. Architecting overall IT solution/technologies required for IUCAA, and present it to Computer Users’ committee for their consensus. 2. Framing policy documents and finalizing them in consultationwith the Computer Users’committeemembers. 3. Drawing up specification for the RFP (Request for Proposal) tender document for IUCAA IT requirement to be purchased and oversee all purchase related procedure and followup. 4. Maintenance of IThardware in the campus including servers, desktops, mobile computing equipment, printers, etc. 5. Maintaining Zimbra email servers, and their day-to-day administration. 6. Configuration andmaintenance of mirror sites hosted at IUCAA. 7. Configuration andmanagement of data backups. 8. Design, management and administration of network topology and firewall rules. Computing Facility