![]() ![]() (Image credit: Shutterstock/Marko Aliaksandr) 4. Read more: The differences between SATA and NVMe SSDs (opens in new tab).However, the more devices and photos you have, the more difficult this can be to put in place.Įven still, the one advantage external hard drives have over recordable media is the bigger and cheaper storage space, with external hard drives now commonly offering over 1TB of storage or more. In which case, saving to a single master USB stick can work well as a backup option for photos in general. In that regard, a USB flash drive will probably be the simpler solution, as not only does it not require leads connecting up to your PC, but they can be easily stored away until needed, and taken with you to other locations as required. Better still, USB flash drives tend to be relatively cheap while offering a large storage space. Additionally, you might not want to use up your limited number of USB ports with an "always on" external hard drive connection. That may not seem like a big problem, but it would seem more ideal to reduce clutter so that backups won't get in your way. While reliability may seem like an initial plus, it does mean you will have to find space for the drive and connecting wires on your computer workspace. The best SSDs (Solid State Drives) are more stable, but tend to cost more. That's a perfectly fine way to run a set of backups, though the caveat is that hard drives can fail. Most people might immediately think of a standalone SATA hard drive, connected up via USB to your computer, which you can then copy and write files to. The strategy and vendor you select are the most important steps to ensuring disaster tolerance for your Exchange Server deployment.(Image credit: Pixabay) 2. Also, check with disaster recovery vendors who support Microsoft Exchange Server (e.g., Computer Associates, Seagate/Veritas, Legato, and UltraBac). In fact, you might consider additional variants such as a daily full backup combined with a mid-day differential backup for even more data security. Whatever your current strategy, it's important that you consider each of the above options and how they fit into your environment. When faced with potential loss of mission-critical messaging data, many organizations are more than willing to endure the inconvenience that daily full backups bring. The downside, however, is that a daily full backup takes more time to perform. The daily full backup option is great when you want to recover an Exchange server because you only need one tape from the previous day’s full backup. I most often recommend this strategy to organizations I interact with. The disadvantage is that each daily differential backup takes longer as the week progresses, depending on the amount of transaction logs that accumulate (depending on server load) on the Exchange server.Īnother strategy is the daily full backup option, which more and more Exchange deployments are using. When you perform a restore, you need only the full backup and the latest differential backup tapes. ![]() Using this strategy for Exchange Server alleviates the need to pack so many tapes. For Exchange Server, the differential backup simply copies all the transaction logs since the last full backup. Although completely legitimate, this strategy does have some drawbacks.Īnother strategy, which doesn't require every daily backup tape since the full backup in the strategy above, would be to combine a full backup with daily differential backups. If your Exchange Server crashed Friday and you made your full backup Saturday, you would need the full backup tape plus five more tapes from the backups from Sunday through Thursday. ![]() However, when you have to restore with this strategy, you must restore the initial full backup tape plus every daily incremental tape. The advantage of this strategy is that backup time is minimal for each daily incremental backup, because only the transaction logs (which are 5MB each) are copied to tape. Traditional thinking tells us that a full backup followed by daily incremental backups is the best course of action. The three types of commonly used backup methods are full, incremental, and differential. Microsoft provides three main types of backup methods (four, if you count the Copy option), and many strategies exist for combining these methods depending on your goals and sensitivity to data loss. What are you doing to ensure your Exchange Server data is safe and sound? I am curious about common practices among Exchange Server deployments. Let’s talk about backup and restore for Exchange Server.
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