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HDDs and SDDs have been in the market for a considerable time now. Over the past decade, HDDs were the sole popular disk space platform but with the introduction of SDDs, the trend is now changing. SDDs are taking over the hosting market faster, and with an increase in technology, they will soon be dominant in the market.
SSD stands for Solid State Drive. SSDs are renowned for the ‘speed’ and ‘reliability’ in the market. The reason for their higher speeds is because they have faster data access time. Servers using these drives, therefore, have faster speeds- as SSDs have faster data access time than other drives.
SSDs use a memory called “flash memory”. Flash memory is similar to RAM- but unlike RAM, the memory stores data even in an event where the computer powers off. SSDs have a grid of electrical cells for sending and receiving data. The grids on SSDs are separated from each other to form “pages”. These pages clump together to form a cluster called “blocks”.
Unlike HDDs, which rely on moving parts, SSDs rely on electronics only that makes them faster and reliable. The way an SSD function is similar to a USB drive. SSDs also store their data in microchips- this explains their faster write/read speeds since microchips have no moving parts. The absence of moving parts in SSDs also makes them resistant to shaking which can cause data corruption or loss.
SSDs write data to empty pages within a block only. The data in SSDs cannot be overwritten and the disk only chooses the empty pages when writing new data.
In web hosting, a site’s visitors love pages that faster. Most modern websites have many resources that also need faster resource access. The medium on which you store your website’s files will determine the speed of your website-But the obvious point is SSDs are faster.
SSDs speed measurement is different from that of HDD speed- since SSDs are manufactured for different uses. There are read-intensive and write-intensive HDDs whose performance is measured in IOPS.
HDD stands for Hard Disk Drive. HDD consists of metallic plates. A magnetic head writes data to these plates- And they are all inside an air-sealed casing. There are read/write head flats found above the spinning platter whose function is to read or write data. The faster the spinning rate of the platter- the faster a hard disk performs. Most server-based HDDs can spin at the rate of up to 15000 RPM.
One major benefit of HDD used in web hosting is that you can hold many data cheaply. The storage density also continues to grow for HDDs and are becoming cheaper as time goes by. Besides, you will enjoy using the free space.
In terms of size, the HDDs are slightly bigger. For laptop drives, you will find them having a 2.5” size while computer drives have a 3.5” size. A larger size hard disk can accommodate a large number of platters-, which translates to more storage space.
|1.||Capacity||Notebook-size SSD drives have a maximum 1TB storage while desktop type SSDs have a maximum 4TB storage||Notebook-size HDD drives have a maximum 2TB storage while desktop type HDDs have a maximum 10TB storage|
|2.||Power draw/Battery life||SSDs have less power draw of between 2-3watts that results in 30+ minutes battery boost.||HDDs have more power draws of between 6-7 watts, which uses more battery power.|
|3.||Cost||For cost calculation, we will use estimations basing on a 1TB drive. SSDs cost roughly $0.20 per GB.||For cost calculations, we will use estimations basing on a 1TB drive. HDDs cost roughly $0.03 per GB|
|4.||OS boot time||Average boot time of around 10-13 seconds||Average boot time of around 30-40 seconds|
|5.||Noise||SSDs have no moving parts and consequently no noise||HDDS moving parts could produce clicks and spinning sounds that can be heard when the disk is in operation.|
|6.||Heat produced||SSDs have less power draws and consequently produces less heat||HDDs do not produce quantifiable heat, but compared to SSDs it produces more heat due to large power draws and moving parts.|
|7.||Encryption||Some SSD models support full disk encryption||Some HDD models support full disk encryption|
|8.||Magnetism effect||SSDs are not affected by magnetism||Strong magnets can erase data from an HDD|
|9.||Vibrations||SSDs produce no vibrations due to the absence of moving parts.||HDDs can produce vibrations due to the platters’ spinning action.|
|10.||Write speed||SSDs have higher write speeds that are above 200MB/s. some cutting drive edges also have up to 550MB/s speeds.||HDDs drive speed could range anywhere from 50-120MB/s.|
Over the last few years, HDD’s use in the hosting industry has been tremendous due to two reasons: they are affordable and have large scalability. However, the trend is slowly changing as the popularity of SSDs keeps surging every day especially in dedicated hosting. After choosing a hosting service, your next task should understand the SSD and HDD storage and what each has to offer.
When it comes to speed, SSDs always take the day. For instance, an SSSD with one 100 GB storage has three or four times faster speed than a hard disk of the same storage space. Web hosting has high transaction volumes and disk access is more common. You will, therefore, need a faster drive to process these data requests especially when your site has higher loads. Using slower servers could result in slower webpage loading speeds, which will place your site at a disadvantage in competition.
When it comes to larger space, HDDs always takes the day. HDDs provide relatively cheaper storage than SSDs. For that case, you will find that the price of a 10GB HDD will not be the same for an SSD with similar storage space. SSD hosting plans are therefore more expensive than HDD hosting plans.
The unlimited storage of SSD drives also keeps them out of shared hosting- Since shared hosting requires more disk space for the many uses.
We do know that solid-state drives perform faster as they have no mechanical parts. Another reason, which increases their performance, is that they respond faster to requests than hard disks- An SSDs will, therefore, respond faster to many requests- up to 19 times faster than HDDs. The SSDs will highly unlikely be overloaded by these requests that help in maintaining the webpage load speeds.
HDDs have mechanical parts that increase their risks of failure. When the hard disk failure occurs, your site will go down until you install a new drive on the server or restore data on the failed disk. In case you have no backups of your data, your site could lose more while also putting the online operations of your company at stake. For SSDs, it is different, as they have no mechanical parts. SSDs are therefore less susceptible to failure that makes it more reliable over HDDs.
Due to their fast write/read speeds, SSD hosting costs more than HDD hosting. The higher costs of SSD hosting comes from the expensive prices of the SSD drives- And the fact that the manufacturing companies use expensive resources to manufacture these drives. However, the differences between SDD and HDD hosting are not so enormous. But whatever the differences in speed- you should consider the reliability and speed more- especially if your company has higher traffic loads.
The bottom line is that both drives are beneficial to hosting- but it all depends on a site’s needs.
HDD hosting may be the right choice if you need:
SDD hosting is the best choice if you need:
HDDs are still more popular in hosting- especially in shared hosting due to their cheaper price and large space. However, SSDs use in hosting –especially dedicated hosting is rising, as larger companies prefer them for handling their numerous data requests. That said both drives still have a say in the hosting market.
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