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articlestoragenewstechtiptutorial February 29, 2012 by Jim McCarron
Summary 8.3 names are a relic of the 1980’s, when the FAT12 and FAT16 file systems used in MS-DOS did not have a provision for arbitrarily-long filenames. In those days, names could have at most eight characters, followed by a single period, and up to a three character extension. That was 25 years ago. More than a decade ago, 255 character names were introduced in Windows 95 and NT 3.5. These operating systems included a slot in their file systems for an “alternate name” formatted according t...
articlestoragenewstechtip February 22, 2012 by Jim McCarron
Summary Deciding the optimal points to import a customer’s NetApp filer can be challenging. Ideally the ARX should import at the highest point possible on the filer in order to keep the total ARX Managed Volume count low. On a NetApp filer the highest possible point would be the volume level. For various technical reasons, which will be discussed below, importing at the NetApp volume level is restricted to a limited set of configurations and should only be used if all technical requirements ar...
articlestoragenewstechtip February 15, 2012 by Michael Fabiano
Introduction This article highlights F5 ARX Tiering over the WAN via ARX tiering-policies and Big-IP (v11.1) WAN Optimization Manager (WOM). When an administrator wishes to utilize storage from another corporate location, they can create an ARX managed-volume that contains local storage as well as non-local storage and effectively tier data between data centers. To the end-user (remote/local), this tiering policy is completely transparent. The tiering policy is optimized via the WAN Optimizati...
articlestoragenewstechtip November 02, 2011 by JC
Introduction Many of our customers take advantage of F5’s evaluation programs prior to purchase. When purchase occurs, a customer may not wish to re-install, re-configure, etc. the software and/or hardware, but rather upgrade the evaluation configuration to a production license. For ARX CE, this involves replacing a time-limited evaluation product key with a perpetual production key. This article describes the procedure. Problem Statement Let’s start with a vignette – suppose Gary has spent h...
  Introduction This article highlights the F5 ARX Disaster Recovery process via the configuration-replication feature (DMOS 5.2 and above) and Big-IP (v10.2.1) Global Traffic Manager (GTM). A new ARX global-config mode option enables as well as facilitates simple Disaster Recovery fail-over of all or part of a file virtualization environment from one ARX cluster to another assuming that files are being replicated using file server replication technology (i.e SnapMirror; VNX Replication; ...
Introduction It is impossible to enumerate all the scenarios under which CIFS access via or by ARX may be denied. In many cases, denial of access may be the desired behavior and can sometimes be temporary. This article is intended to aid in diagnosing the cause when it is not expected. The simple answer; almost in all cases, the file server whose storage ARX is virtualizing returns this error because the entity accessing a file or file system data is not allowed access. In order to understand ...
articlestoragenewstechtip October 13, 2011 by Reinhard Frumm
Introduction This script imports existing Netapp Snapshots (hourly, nightly or weekly) into an ARX Managed Volume (for CIFS). The script reads the existing snapshots on the filer and generates an ARX command line script to incorporate the filer based snapshots into an existing ARX Managed Volume. Then clients can access snapshots via CIFS that were created before ARX was installed. What the Script Does The ARX Managed Snapshot feature can present snapshots, checkpoints, and volume shado...
articlestoragenewstechtip October 07, 2011 by George Watkins
Tech Tip submitted by Dave Porter, F5 Data Solutions Introduction The effectiveness of CIFS virtualization in the ARX is impaired by slow response from external systems such as file servers and domain controllers, resulting in poor response to client requests, and so-called WORKSLOW messages in syslog. Version 6.01.000 of the ARX adds new aids to diagnosing the underlying cause. Problem Statement The problem we’re solving here is one of diagnosis: ARX users complain that ‘the ARX is slow’, a...
articlestoragenewstechtiptutorial September 30, 2011 by Bill Minckler
Introduction The ARX has many features for controlling file placement between the servers behind the ARX. ARX File Placement Policy (policy) has many configuration options that allow for fine tuning the behavior of rules. Under most circumstances keeping the configuration simple (using the default values) is the best approach. This Tech Tip discusses some of the more common features used by place rules and explains how to use the features more effectively. Problem Statement When configuring ...
articlestoragenewstechtip September 09, 2011 by A Sood
Introduction This article details the process of using F5 Data Manager to generate storage usage reports for all users in an Active Directory (AD) Group. A report is created for each user in the group from a single CIFS file system inventory. The capability of generating such reports is available only with the Advanced Reporting Module. Problem Generating a report for each user in an AD environment can be a challenging task if each user for whom the report is to be generated has to be manua...
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