Tape Products: Leap Second Readiness

Asset ID:	1-79-2005154.1
Update Date:	2016-12-02
Keywords:

Solution Type Predictive Self-Healing Sure

Solution 2005154.1 : Tape Products: Leap Second Readiness

Related Items


LTO Tape Drive
 Sun StorageTek T10000A Tape Drive
 StorageTek Service Delivery Platform (SDP2)
 StorageTek Tape Analytics
 StorageTek Virtual Storage Manager System 6 (VSM6)
 Sun StorageTek T10000B Tape Drive
 StorageTek T10000D Tape Drive
 Oracle Hierarchical Storage Manager (HSM) and StorageTek QFS Software
 Sun StorageTek 9940A Tape Drive
 Sun StorageTek SL8500 Modular Library System
 StorageTek SL150 Modular Tape Library
 Oracle Hierarchical Storage Manager (HSM) and StorageTek QFS Software
 Sun Storage SL3000 Modular Library System
 Sun StorageTek 9840 Tape Drive
 StorageTek T10000C Tape Drive
 Sun StorageTek Crypto Key Management System
 Sun Virtual Library Extension (VLE)
 Sun StorageTek 9940B Tape Drive
 Sun StorageTek 9940 Tape Drive

Related Categories


PLA-Support>Sun Systems>TAPE>Virtual Tape>SN-TP: VSM

In this Document

Purpose

Details

Applies to:

Sun Virtual Library Extension (VLE) - Version 1.5 and later
Sun StorageTek T10000A Tape Drive - Version All Versions and later
Sun Storage SL3000 Modular Library System - Version Not Applicable and later
Sun StorageTek SL8500 Modular Library System - Version All Versions and later
StorageTek Virtual Storage Manager System 6 (VSM6) - Version All Versions and later
Information in this document applies to any platform.

Purpose

Awareness for the next leap second insertion, scheduled for June 30th, 2015 at 23:59:60 UTC (as per IERS Bulletin C 49).

Details

Leap seconds are a periodic one-second adjustment of Coordinated Universal Time(UTC) in order to keep a system's time of day close to the mean solar time. However, the Earth's rotation speed varies in response to climatic and geological events, and due to this, UTC leap seconds are irregularly spaced and unpredictable.

The NTP protocol can be used to sync time with most modern devices, automatically making the leap second adjustment. The following StorageTek tape products support NTP: SL150, Oracle HSM, OKM, STA, MDVOP, VSM6, and VLE.

All other tape products not using NTP, like SL8500, SL3000, 9x40, T10K and VSM4/5 are not exposed.

The NTP protocol can be used to sync time with most tape product software, using the Solaris or Linux OS.

Reference Solaris Document ID 1019692.1 or Oracle Linux Document ID 1453523.1 for more details.

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