Solve it with HR’s SpeedSeed(tm). A “Data Clog” can occur when one NAS device is replicating data to a cloud service or another NAS device through the internet, and it is interrupted. This can occur because of flakey internet connections, bandwidth issues, power failures, user error, etc. Often this results in a bulge of growing…
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Removable drives are better than cloud services and conventional NAS/BDRs for Data BackUp because: 1. They are invulnerable to remote or virus attacks (when removed). It’s simple, it can’t be manipulated, deleted, or otherwise hacked if it’s powered off or sitting unattached somewhere. And removable drives can provide archive depth that not only dates back…
You can’t tell by looking at the physical connection whether a machine is using iSCSI or a Windows share. Both iSCSI connections and shared Windows hard drives use an Ethernet connection to attach storage. Since they use the same physical connection and network cable, it can be confusing to understand the difference. It used to be that an appliance that “shared” it’s drive was called a NAS (Network Attached Storage), and one that used iSCSI was called a SAN (Storage Area Network). This was because iSCSI was setup by installing a second network card in the server, and a dedicated link or Ethernet network was used for just storage traffic (hence the term storage area network versus local area network). Nowadays it’s not uncommon for even low end NAS devices to support the iSCSI software protocol, so the line can be somewhat blurry.
Software as a Service (SaaS) applications have become “cloud backup applications”, and are increasingly popular. According to a survey of enterprise customers by Aberdeen Group, around 1/2 of firms are using the cloud for Customer Relationship Management (CRM) software and email (with Exchange making up 19%). The high adoption rate reflects software manufacturer’s focus on recurring monthly revenue models versus the older sales models where software was purchased with yearly support or maintenance fees. By hosting their applications, software vendors such as Microsoft CRM and Salesforce.com create higher profit margins and create tighter linkage to the end user. This model will eventually diminish, and disintermediate the importance of trusted consultants and IT resellers which account for approximately 30% of the traditional cost of IT.
Suppose you were to run a burn in test on a brand new Seagate 3TB SATA drive, writing 3TB and then reading it back to confirm the data. Our standards are such that if a drive fails during 5 cycles we won’t ship it. Luckily, all 20 of 20 drives we tested last night passed. In fact, most of the 3TB drives we test every week passed this test. Why is that a big deal? Because there is a calculation floating around out there that shows when reading a full 3TB drive there is a 21.3% chance of getting an unrecoverable read error. Clearly the commonly used probability equation isn’t modeling reality. To me this raises red flags on previous work discussing the viability of both stand alone SATA drives and large RAID arrays.