random thoughts at best
“A general system error occurred: Failed to start migration pre-copy. Error 0xbad003f. Connection closed by remote host, possibly due to timeout.” “A general system error occurred: Failed to start migration pre-copy. Error 0xbad004b. Connection reset by peer.” Another issue, that I recently came across was a live vMotion issue where the vMotion migration would fail […]
After a disk has faulted, the disk goes into a transitioning or an equalizing state. EMC uses different terminology to describe the action of repairing a faulted disk. Transitioning or equalizing times can vary based on the type and speed of the disk but your SAN utilization will have a direct impact on how fast […]
Quest (Vintela) Authentication Services (VASD) provides schema extensions to Active Directory to authentication against LDAP by providing SID to UID/GID mappings and vice versa. In multiprotocol environments that provide NFS and SMB protocols to the same underlying data it becomes tricky with permissions and file ownership since it must be maintained in the *nix and […]
A mixed protocol environment means that you have two means of accessing the same data generally through SMB/CIFS/Samba and NFS. SMB is natively supported in Windows and NFS is natively in *nix environments. There are complexities an organization will always run into when running in a mixed protocol environment which is a result of how […]
If you ever have a need to get into an EMC DataDomain BIOS screen the default password is a simple pattern based off the major series model number. For example: DD460 = d400d (delta four zero zero delta) DD670 = d600d (delta six zero zero delta) DD880 = d800d (delta four zero zero delta) The pattern is simple, “d […]
During testing, the EMC Isilon storage was successfully reading the Active Directory Attributes but the data was incorrect. The data that was in the uid & gid fields were id’s that were automatically generated by the Isilon storage itself. The id’s that were generated by the Isilon storage took precedence over any mappings that were […]
There are many challenges that are faced when an organization is forced to run a mixed protocol environment to serve up the same data. This introduces additional management tasks and additional complexities. In a mixed protocol environment you must manage Windows Access Control Lists (ACL) to enforce Windows permissions in addition to managing *nix user/group […]
“TACACS+ is an Authentication, Authorization, and Accounting (AAA) protocol originally developed for the U.S. Department of Defense for authentication to network devices such as routers, switches, and firewalls. Unlike RADIUS, it separates the Authentication and Authorization functionalities, which makes it more flexible for administrative access. The current version of the protocol standard was developed by […]
Just recently, there was a pesky failing fan inside of our controllers on a Xiotech Magnitude 3D 4000. A replacement part dispatched and when the controller was taken off line, it was difficult to determine which fan was “Board Fan 1” since there were no markings. In addition, the fan numbering could have started with […]
Upgrading the NX-OS on a Cisco MDS 9148 Fabric Switch is a straight forward task. There are only three commands to upgrade the NX-OS, two copy commands and the install command which does all the work. First you need a TFTP server on the same network as the management interface to transfer the files over […]