Browsing Posts in DellTechnologies

Reading Time: 3 minutesIf you use SSD disks connected to a RAID controller like the Dell PERC (common in most Dell PowerEdge server), is common that the disks may be not recognized as SSD on the upper level. Because this type of RAID card cannot have a pass-thought feature (or VSAN friendly in VMware world) and is threated as a common virtual disk. If the purpose is just add the SSD as a cache system, you can use the integrated (in most recentrly PERC) feature: CacheCade is used to improve random read performance of the Hard Disk Drive (HDD) […]

Reading Time: 2 minutesHeartbleed is a software bug in the open-source cryptography library OpenSSL, which allows an attacker to read the memory of a server or a client, allowing (with special forget packets) reading (small) portition of the victim client. This could expose to lost of some data and potentially also confidendial data. Heartbleed.com has a detailed explanation of the issue, which is related to the “heartbeat” section of OpenSSL’s transport layer security (TSL) protocols and has been in the wild since March 2012 and affect all version from OpenSSL 1.0.1 through 1.0.1f. You need to upgrade the […]

Reading Time: 2 minutesIn the night (in my timezone) between March 17th and 18th I’ve received an email with this subject: Congratulations, you have been selected as 2014 Dell TechCenter Rockstar! The content of the mail explain the program and the criteria: The Dell TechCenter (DTC) Rockstar program recognizes independent experts and enthusiasts for their significant positive impact on Dell TechCenter, blogs and social media when discussing Dell. After careful review of numerous applicants and nominations, we think you would be a great fit for our exclusive group.

Reading Time: 2 minutesSome years ago, I’ve write some posts on how install Dell OpenManage on VMware ESXi. The OpenManage Server Administrator (OMSA) is a Dell tool really useful for a central management or to be integrated in other Dell’s management tools. There are different options, but basically the most used ways are: Use the Dell ESXi custom image that already include also a version of OMSA (not necessary the latest) Use the command line Use VMware Update Manager The last option is my preferred option because is really faster and simplest.

Reading Time: 2 minutesIn the previous post we have described how the command line of a Dell PowerVault storage allows several more operations compare the graphical interface. For example, the disk initialization is just one of the several troubleshooting cases where it becomes mandatory to rely on the command line (or on technical support). Another case is where the RAID of a disks group go into the “corrupted” state: at that point, again, there is no simple solution because you have limited options in the graphical interface. Again, the solution is switch to the command line and use the […]

Reading Time: 3 minutesOne of the advantages of Dell PowerVault storage, with the MDxxx series, is that they use disks with identical bays of the server version (obviously depending on the generation, there will bays like the G9 servers or  bays with the same G10, G11, G12 servers form factor). In addition, disks are theoretically interchangeable because are the same models (almost from Seagate vendor, ad least for spinning disks). However, in practice, this was true with MD30xx models and derivatives, but with the recent series (MD32xx or MD36xx), there are some limitation based on the firmware version […]

Reading Time: 2 minutesDell Enterprise Forum (DellEntForum) is the new name of the event previously named Dell Storage Forum. Worldwide there were already some events with this new name, but only on 2014 there will be the first EMEA event (properly this should be the third Dell’s EMEA event, after London and Paris Storage Forums): EMEA event: 14-17 April 2014 | Frankfurt, Germany

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