Showing posts from June, 2022

IBM Spectrum Virtualize Safeguarded Copy

  Several months ago I was asked by a local organization here if I could recover files from a system that had been encrypted by a ransomware attack.  After looking at the hard drive in the system and doing some research, I told the organization that I could not.   It did not have a backup of the files, at least not a recent one.  The most critical  data loss for this organization was financial records.   It took a few months and a lot of work to recover most of the missing records.     Had the organization done something as simple as periodically plug in a USB drive, run a backup and then remove the drive, that would have saved them a lot of work.   The USB drive is somewhat of an immutable copy of the data, at least as long as it is not plugged into the computer while the computer is still infected.   However, a USB-attached drive doesn't really scale well  at the enterprise level, and it is not a true immutable copy, since if it is plugged back into a computer that is infected, i

Brocade Fabric Performance Impact Notification

  Brocade Fabric Performance Impact  Notification  (FPI N )  was released in Broadcom FOS v9.0.  It is available on Brocade Gen6 and Gen7 switches.    This  feature enables the switch to detect issues on a fabric such as congestion or physical link issues and then then notify the affected devices that have registered for these notifications.  FPI N  functions in a similar mechanism to RSCN.    RSCN enables the fabric to send  notifications to devices when a device they are zoned to is going offline.  The devices that receive these notifications can then proactively take steps such as path failover rather than have to react to a path being down.   FPIN provides a means to notify devices of link or other issues with a connection to a fabric or a path through it.    For both RSCN and FPI N , a device must register with fabric services to receive these notifications.  The new Brocade Gen7 hardware  can send hardware  or software signal notifications.  Gen6 can only send software notificati