Cloud storage and backup supplier Backblaze has launched a report on its laborious drive failure charges for 2022 which seems to confirm that the age of a drive is a key metric for predicting potential failure.
Backblaze recurrently releases stats protecting the failure charges of all of the laborious drives beneath its administration, and these datasets have confirmed a treasure trove for others to investigate for their very own functions – supplied they cite Backblaze because the supply and don’t promote the info.
The newest figures revealed on the Backblaze blog cowl the laborious drive failure charges it noticed for 2022 throughout its storage portfolio, which stood at 235,608 particular person drives as of December 31.
Nonetheless, 4,299 of those had been boot drives whereas one other 388 drives had been faraway from consideration as a result of they’d been used for testing functions or had been fashions for which the corporate didn’t have at the least 60 drives in operation. This nonetheless leaves statistics protecting 230,921 laborious drives used for information storage functions.
In keeping with Backblaze’s principal cloud storage evangelist, Andy Klein, there was a notable enhance within the annualized failure fee (AFR) throughout final 12 months, rising from 1.01 p.c in 2021 to 1.37 p.c throughout 2022.
“In our Q2 2022 and Q3 2022 quarterly Drive Stats studies, we famous a rise within the total AFR from the earlier quarter and attributed it to the getting older fleet of drives, however is that actually the case?” he requested.
The reply, it appears, is sure.
Klein in contrast 2021 and 2022 annualized failure charges for big drives (which Backblaze defines as 12TB, 14TB and 16TB) towards smaller drives (4TB, 6TB, 8TB and 10TB) and located that each dimension (excluding 16TB drives) confirmed a rise in AFR between 2021 and 2022. The figures present the smaller drives failing extra usually, however they’re additionally older.
A chart exhibiting the typical age of every drive mannequin deployed by Backblaze towards dimension exhibits clearly that the smaller a drive is in capability, the older it tends to be, with 16TB spinners lower than six months previous whereas some 4TB and 6TB fashions had been over 90 months previous.
Common age of Blackblaze laborious drives
This enhance as a drive mannequin ages follows the bathtub curve, whereby a typical drive may be anticipated to exhibit a rash of early failures, adopted by a interval when there are comparatively few, adopted by an uptick as soon as extra as all of the drives strategy the top of their lives and put on out.
Taking a look at a chart of annualized failure charges over time and by producer, it would seem that a lot of the general rise over the previous 12 months has been pushed by Seagate and Toshiba fashions. Nonetheless, Klein factors out that within the case of Seagate, a lot of the fashions from that vendor are considerably older than many others, and there’s additionally the lifecycle value of a given laborious drive mannequin versus its failure fee to think about.
Backblaze laborious drive failure charges
“Usually, Seagate drives are inexpensive and their failure charges are sometimes larger in the environment. Their failure charges are sometimes not excessive sufficient to make them much less value efficient over their lifetime. You possibly can make case that for us, many Seagate drive fashions are simply as value efficient as costlier drives,” he stated.
In terms of the lifetime annualized failure charges throughout all of the drive fashions in manufacturing at Backblaze, the present total fee is 1.39 p.c, which the corporate reckons is down from that of a 12 months in the past (1.40 p.c) and likewise down from the earlier quarter (1.41 p.c).
Klein says that in 2023, the corporate’s focus is anticipated to be on changing the older drives with 16TB and bigger laborious drives, which signifies that its 4TB drives and the 6TB Seagate drives (which have a median age of 92.5 months) are more likely to go.
As ordinary, the entire information set used for Backblaze’s report is obtainable from the corporate’s Hard Drive Test Data web page. ®
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