Articles about storage, backup, virtualization, technology, innovation, programming, leadership, management,... etc
Articles about storage, backup, virtualization, technology, innovation, programming, leadership, management,... etc
2021 Gartner® Magic Quadrant™ for Primary Storage No Registration Required! Download the complimentary report to gain valuable insights, including: The current state of the data storage market Evaluation by Gartner of vision, strengths, and cautions for each primary storage vendor
Storage Path Redundancy Considerations: Multipathing provides both availability and load balancing for performance. Consider these guidelines when designing multipathing: • Always configure storage multipathing. • For availability, use a minimum of two active paths to a LUN: — Four paths are better because this configuration accommodates more types of failures. • Configure paths using two […]
When you create host group on Hitachi VSP (or HPE XP) series, you can use these best practices for most used operating systems. For all operating systems: If you have GAD ( or HA) you must enable 88(Port Consolidation) in Host Mode Options. For Windows, host mode is 2C [Windows Extension] Enable from host mod […]
If your storage and OS support trim, quick format can takes long time. Furtermore, you can disable trim before format and activate it later. For Windows: Disable trim command: fsutil behavior set disabledeletenotify 1 To enable again: fsutil behavior set disabledeletenotify 0 Link: https://docs.microsoft.com/en-us/windows-server/administration/windows-commands/fsutil-behavior For Linux: If you try format it with XFS, you can […]
1. EMC Networker: Change “remote access” option *@* on every client” –> https://sysarticles.com/emc-networker-security-exploit-that-remote-access/ 2. Veritas Netbackup: Remove No.Restrictions file –> https://sysarticles.com/security-expolit-on-netbackup-no-restrictions/ 3. EMC VMAX: Change default password of SMC user in unisphere (take snapshot or backup before changing. If you would get “Failed to authenticate user.” error, there is no way to fix except restore or reinstall. […]
1. Create new meta devices that you will add to disk: symconfigure -cmd “create dev count=X, size=Y cyl, emulation=FBA, config=TDEV, mvs_ssid=0, device_attr=SCSI3_persist_reserv;” prepare / commit · Change the X and Y to the correct values for your environment · Make a note of the device IDs, I’ll call them AAAA and BBBB, assuming you created two Example: symconfigure -sid 096 -cmd “create dev count=8, size=27776 […]
