How to write a feature article from an interview

ZFS is designed to ensure subject to suitable hardware that data stored on disks cannot be lost due to physical errors or misprocessing by the hardware or operating systemor bit rot events and data corruption which may happen over time, and its complete control of the storage system is used to ensure that every step, whether related to file management or disk management, is verified, confirmed, corrected if needed, and optimized, in a way that storage controller cards and separate volume and file managers cannot achieve.

Use of poor quality components — Calomel identify poor quality RAID and network cards as common culprits for low performance. Well, said the young woman, maybe you could help us schedule games against some of those AAU teams.

For example, synchronous writes which are capable of slowing down the storage system can be converted to asynchronous writes by being written to a fast separate caching device, known as the SLOG sometimes called the ZIL — ZFS Intent Log. For example, a ZFS volume can be created, and then the block device it presents can be partitioned and formatted with a file system such as ext4 or NTFS.

The volume will be seen by other systems as a bare storage device which they can use as they like. If you want to be paid to write an article, here are some article writing tips: Resizing of vdevs, pools, datasets and volumes[ edit ] Generally ZFS does not expect to reduce the size of a pool, and does not have tools to reduce the set of vdevs that a pool is stored on.

Similarly, many settings allow the balance between network latency smoothness and throughput to be modified; inappropriate caches or settings can cause "freezing", slowness and "burstiness", or even connection timeouts. If data redundancy is required so that data is protected against physical device failurethen this is ensured by the user when they organize devices into vdevs, either by using a mirrored vdev or a RaidZ vdev.

Since ZFS device redundancy is at vdev level, this also means that if a pool is stored across several vdevs, and one of these vdevs completely fails, then the entire pool content will be lost. Therefore, it is intended that vdevs should be made of either mirrored devices or a RaidZ array of devices, with sufficient redundancy, for important data, so that ZFS can automatically limit and where possible avoid data loss if a device fails.

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These can be single devices or multiple mirrored devices, and are fully dedicated to the type of cache designated. Note- not recommended in practice due to risk of data loss. Seek to be surprised.

It also places a very heavy load on the CPU, which must calculate and compare data for every block to be written to disk. Automatic rollback of recent changes to the file system and data, in some circumstances, in the event of an error or inconsistency.

ZFS stores the data in a pool striped across all the vdevs allocated to that pool, for efficiency, and each vdev must have sufficient disks to maintain the integrity of the data stored on that vdev. Talese remained in L. A list of ZFS cache types is given later in this article.

Backups and replication are also an expected part of data protection. If the tension is not obvious from the start, it often shows itself through an offhand comment or some seemingly trivial fact. It may, in some cases, need these tools to be used, to gain the best performance it can provide. Uncovering those means talking not just to the big players in the story, but to everyone you can.

A vdev is made up initially from a single 4TB hard drive, and data stored on it. Re- silvering is the ZFS equivalent of rebuilding a RAID array, but as ZFS has complete knowledge of how storage is being used, and which data is reliable, it can often avoid the full rebuild that other RAID rebuilds require, and copy and verify only the minimum data needed to restore the array to full operation.

Cache devices[ edit ] In addition to devices used for main data storage, ZFS also allows and manages devices used for caching purposes. Snapshots do not take much disk space, but when data is deleted, the space will not be marked as free until any data is no longer referenced by the current system or any snapshot.

But think about all that might have led to that moment. A ZFS vdev will continue to function in service if it is capable of providing at least one copy of the data stored on it, although it may become slower due to error fixing and resilvering, as part of its self-repair and data integrity processes.

Look for the different milestones in your own story, the highs and lows the key players go through that define their journeys. A RaidZ vdev cannot be converted to or from a mirror, although additional vdevs can always be added to expand storage capacity which can be any kind including RaidZ.

Vdevs can be manipulated while in active use. Because ZFS does not create a file storage system on the block device or control how the storage space is used, it cannot create nested ZFS datasets or volumes within a volume. You still may have a fine article on your hands.

Sometimes the tension is not yet resolved in life, but the story must, of course, end on the page.How to Write a Profile Feature Article s a student journalist, your mission is to inform your peers.

Your fellow students look to your work to help them understand the nuances of the environments they inhabit, and to accurately represent their experiences and views. TIME may receive compensation for some links to products and services on this website. Offers may be subject to change without notice.

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When Esquire asked Gay Talese to write a piece on Frank Sinatra inhe didn’t want to do it. Everyone seemed to be writing about Sinatra.

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But the (now legendary) writer reluctantly took the assignment, traveling to Los Angeles only to find that he couldn’t even get an interview. In a rare interview, Mia Farrow talks to Maureen Orth about surviving scandals past; daughter Dylan reveals her feelings on Woody Allen. How Do I Whitelist Observer?

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How to write a feature article from an interview
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