Your Drive Threw Its First Bad Sector. RMA It, or Live With It? (2026)
Someone on r/DataHoarder laid out the decision better than any buying guide does:
“I bought a manufacturer-recertified HGST 12TB from ServerPartDeals in February 2025 for about $165. It’s one of three drives in a RAID5 volume on my Synology NAS (two recertified HGST drives). Recently this drive developed 57 reallocated sectors (SMART attribute #5). It was 0 at shipment.”
Everything hard about the problem is in that paragraph. A number that is not zero and not catastrophic. A number that moved. A RAID5 with no spare parity margin. And a warranty that may or may not be worth using.
I have written that used and recertified drives are worth buying, because they are 62 to 75% of new. This is the next question, which I had not answered: what to do when the cheap drive starts to go, and whether the money you saved is still saved.
Prices below are measured from the live Amazon.com listings I track on 11 August 2026, 2,520 hard drive listings at 2 TB and above.
The count is the wrong number to stare at
SMART attribute 5, reallocated sector count, is not a fault log. It is a record of how many times the drive has found a sector it did not trust and quietly swapped in a spare from a reserve pool it shipped with. The remapping itself is the drive working as designed.
So “how many is too many” has no clean answer, and the threads reflect that. Every one of them contains somebody saying a few are fine and somebody saying one is too many, both stated with total confidence.
The person who asked the right question phrased it in their title:
“Would you be replacing this SSD? (Reallocated sectors climbed 1-2-3 in the last 3 weeks)”
One, two, three over three weeks is a worse sign than fifty-seven that have not moved in a year. A static count means the drive found a patch of bad media, dealt with it and got on with life. A climbing count means whatever is causing it is still happening.
What this means in practice:
- Take dated readings. One number tells you almost nothing. Log SMART weekly, or after every scrub, so you have a slope rather than a point.
- Watch 197 and 198 more than 5. Current pending sector count and offline uncorrectable are sectors the drive has found suspect and has not yet been able to remap. Those are unresolved, where a reallocated sector is resolved.
- A scrub or full read is what surfaces them. Sectors go bad silently and are only discovered when something reads them. If you have never scrubbed, a count of zero mostly means nobody has looked.
I want to be plain about what I cannot tell you. I do not have failure statistics of my own, and I am not going to reconstruct anybody else’s from memory to make this section feel more authoritative. Backblaze publishes real drive statistics quarterly and that is the place to go for population-level failure rates. What I can price is the decision, which is the part nobody does.
Price the decision before you make it
The 57-sector poster paid about $165 for a recertified 12 TB in February 2025. That number is the whole argument and they did not realise it.
Here is the 12 TB used market today:
| 12 TB, used, internal SATA | Price |
|---|---|
| Cheapest listing | $299.00 |
| Median listing | $359.95 |
| Cheapest with a stated 24 month warranty | $315.99 |
Their replacement costs roughly twice what the drive did. A warranty claim they were treating as an inconvenience is worth more than the original purchase, because the market moved hard underneath them. Prices rose sharply through 2026 and anybody who bought before the spike is holding a claim worth more than they think.
That reframes the whole question. The instinct is “is this drive bad enough to be worth the hassle of an RMA”. The better question is “what would I pay today to replace it”, and if that number is larger than what you paid, the hassle threshold drops a long way.
The sequencing matters more than the decision. In an array with single parity and no spare, the expensive mistake is waiting until the drive actually fails, because then you are rebuilding onto a new drive with no redundancy and a shopping trip in the middle. Start the claim while the drive still works, buy or borrow the replacement first, and swap on your own schedule. Everything in what a rebuild actually costs you in time applies here.
What a replacement costs today, with cover
If you are buying rather than claiming, these are the cheapest used listings stating 24 months of warranty or more, measured this morning:
| Capacity | Price | $/TB | Warranty stated |
|---|---|---|---|
| 6 TB | $160.00 | $26.67 | 60 months |
| 8 TB | $259.99 | $32.50 | 60 months |
| 10 TB | $259.99 | $26.00 | 60 months |
| 12 TB | $315.99 | $26.33 | 24 months |
| 14 TB | $339.99 | $24.29 | 36 months |
| 16 TB | $479.99 | $30.00 | 60 months |
| 18 TB | $459.99 | $25.55 | 60 months |
| 20 TB | $599.99 | $30.00 | 60 months |
And the thing that keeps surprising me, because I have now measured it twice a week apart. Used drives that state a long warranty are cheaper per terabyte than used drives that state none:
| Capacity | No warranty stated | 24 months or more | Difference |
|---|---|---|---|
| 4 to 5 TB | $45.00 | $51.75 | +15% |
| 6 to 8 TB | $40.00 | $33.75 | -16% |
| 10 to 12 TB | $35.00 | $29.17 | -17% |
| 14 to 16 TB | $32.32 | $28.57 | -12% |
| 18 TB and above | $33.29 | $30.00 | -10% |
I found the same shape on 4 August and it has not moved. So this is structural, not a one-day artifact: from 6 TB up, you are being paid to take the drive with cover. The no-warranty listings are the worst value on both axes at once, and they are the ones people buy because they sort by price.
The practical version of that: the cheapest fix for “what do I do when my cheap drive goes bad” happens at purchase, not at failure. Buy the listing that states months.
The three things people call “a warranty”
The threads use one word for three different situations, and the remedies are not the same.
Manufacturer recertified. The manufacturer tested and re-warranted the drive, usually for a shorter term than new. This is the strongest position: you claim with the manufacturer and the process is the normal RMA process.
A seller warranty. A reseller promises to replace the drive for some period. Only as good as the reseller, and it usually means a replacement rather than a refund. Worth knowing that the community’s own view is that replacement is the normal outcome and is fine:
“All mine were 0 hours, one broken. You ordered 2 drives and got unlucky. No clue why you opted for a refund rather than replacement”
- u/TeachingAway9654, r/DataHoarder
A marketplace refurb tag. This is the weakest and the most easily mistaken for the other two:
“I bought some HGST Ultrastar 6TB drives from a seller on eBay. They came with 1 year warranties and eBay refurb tags, but clearly after smart testing that doesn’t prove they were sent in the like-new condition”
A tag is a claim about condition, not a contract about the future.
And the process itself can be the obstacle rather than the drive:
“on June 9th I opened an RMA for 2x 20TB ironwolf HDD’s and 1x16TB skyhawk surveillance HDD with Seagate. After I opened it I reached out to Seagate to see if they would be nice enough to issue a free shipping label as I had heard others got one for free just by asking.”
Shipping is on you more often than people expect, and a heavy 3.5” drive shipped insured is not a rounding error. Price it into the decision rather than discovering it halfway through.
Shucking’s bill, which is mostly my fault
Now the part I owe you a correction on.
This site has recommended shucking, buying an external drive and taking the bare drive out of the enclosure. It is the classic data hoarder move and for years it was excellent advice. When I went to write up what shucking costs you later, I priced it first, and the answer surprised me enough that the later costs almost do not matter.
Cheapest named shuck target against the cheapest new internal SATA drive at the same capacity, today:
| Capacity | Shuck target | Cheapest internal | Shucking saves you |
|---|---|---|---|
| 8 TB | $279.99 Seagate Expansion | $259.99 | -$20.00 |
| 10 TB | $342.57 Seagate Expansion | $305.00 | -$37.57 |
| 12 TB | $529.99 WD Elements | $339.99 | -$190.00 |
| 14 TB | $608.99 WD Elements | $349.87 | -$259.12 |
| 16 TB | $482.13 Seagate Expansion | $499.99 | +$17.86 |
| 18 TB | $614.99 WD Elements | $674.45 | +$59.46 |
| 20 TB | $700.35 WD Elements | $619.99 | -$80.36 |
| 22 TB | $969.99 WD Elements | $695.99 | -$274.00 |
| 24 TB | $1,059.99 WD Elements | $649.99 | -$410.00 |
At seven of those nine capacities, shucking costs you money. Only 16 and 18 TB save anything, and at 16 TB the saving is under eighteen dollars before you have opened anything.
One caveat I owe you, because it cuts against my own table: the cheapest new internal is often an OEM or enterprise part from a volume seller rather than a retail-boxed drive, so this is not perfectly like for like. It is still the choice you actually face at the moment of buying, and a $410 gap at 24 TB is not explained by packaging.
I do not think shucking was ever a bad idea. I think the external market repriced and the advice did not keep up, including on my own pages. That is worth saying plainly rather than quietly deleting.
And then the bills arrive
Say you shuck anyway at 16 or 18 TB, where it still pays. Four costs land afterwards, and none of them appear in the price comparison.
1. The 3.3 V pin. Some WD drives use pin 3 of the SATA power connector as a power disable signal. In a chassis that drives that pin, the drive simply does not spin up. The community fix is Kapton tape over the pin, or a Molex adapter that does not carry 3.3 V. Not everybody hits it:
“I shucked three WD Elements 14TB drives, and all three contained WDC WD140EDGZ-11CMYA0 running at 7200 RPM. My case is an Inter-Tech IPC 4U-4416, so the drives worked immediately without using Kapton tape”
Note what that person is reporting: relief. The default expectation is that you will need the tape.
2. The claim needs the enclosure. This is the one that catches people at the worst moment:
“I bought (2) 22TB seagate drives a couple months back. One… is showing UNC errors and I want to get it replaced under warranty. I realized I don’t know which external enclosure the internal drive should be p[ut back in]”
If you shuck more than one, label the enclosures. That is the entire fix and it costs nothing, and almost nobody does it until after they need it.
3. Resale is harder. Buyers know about the 3.3 V issue, so a shucked drive is a known hassle on the second-hand market:
“I need to sell like 5-6 WD 8TB drives from a few years ago… as many of you guys on here are aware the 3.3v issue is a roadblock.”
4. You do not know what is inside until it is open. That is the game, and it is fine when the saving is large. It is a poor trade when the saving is seventeen dollars.
The person this is actually for
Two posters in this harvest are doing everything right and are still stuck. This one has already absorbed all the advice this site has published:
“I’m looking at Seagate Exos and Iron Wolf Pro drives for a NAS. Now isn’t a great time, but not having the capacity is majorly messing with what I can do right now. I’ve done some research which brought to certified refurbished and double checking models to make sure drives are CMR. Now it’s buying the drives in a way that won’t make me go broke.”
He has done the recertified research and the CMR versus SMR research. What he still cannot do is act. So, concretely: buy the used listing that states a warranty in months, because at his capacities that is the cheaper option anyway, and buy incrementally rather than all at once.
The other one is the reason this article exists at all. Someone looking at $30 drives wrote:
“according to the seller the drives were sitting in storage from an older build, spin up but don’t get recognized or loaded on either mac or windows, tested via enclosure and direct sata… green flag: They spin up when I connect them”
Spinning up but not being recognised is close to the worst sign there is. It is not a green flag. A drive that spins and does not enumerate has usually lost its board, its heads or its service area, and “for parts” is what the seller called it because that is what it is. If the platters hold something you need, that is a data recovery conversation, not a bargain.
Bottom line
As of 11 August 2026:
- Watch the rate, not the count. Three reallocated sectors in three weeks is worse news than fifty-seven that have not moved in a year. Log SMART with dates.
- Pending and uncorrectable sectors (197, 198) matter more than reallocated ones (5). Those are the ones the drive has not resolved.
- Price the replacement before you decide. The 12 TB that cost $165 last year costs $299 to replace today, which makes the warranty claim worth about twice the original purchase.
- Start the claim while the drive still works, especially on single parity. Do not wait for the failure and then go shopping.
- Buy the warranty at purchase. From 6 TB up, used drives stating 24 months or more are 10 to 17% cheaper per TB than used drives stating none.
- Shucking mostly does not pay right now. At seven of nine capacities the named shuck targets cost more than the bare drive. Only 16 and 18 TB save anything.
- If you do shuck, label the enclosures. Free at the time, priceless at claim time.
For live prices, refurbished HDDs covers the used market and cheapest HDD per TB ranks everything I track. Before buying used, what to check before you pay covers warranties, SMART and the checks worth running in the first 48 hours.
Prices in this article were measured from live Amazon.com listings on 11 August 2026, across 2,520 hard drive listings at 2 TB and above. No failure statistics are quoted, because I do not have any of my own and will not reconstruct anyone else’s from memory. Reddit quotes are from public threads, linked at each quote. HDDHunt earns a commission on purchases made through links on this site, at no extra cost to you. See the affiliate disclosure.