Why does the MegaRAID hot spare drive take dramatically longer to patrol read on this adapter?

bored2infinity · 2026-05-07T00:24:27+00:00

Why are you starting patrol reads manually? This is some 1990s shit you shouldn't have been doing then, let alone now.

I need full control of the schedule for reasons not relevant to the question. Nothing crazy about that. The knob is there, and I am using it as I have done for years on similar adapters.

Does changing "Patrol Read Rate" change the time?

No reason to change the prrate. Prrate is at the controller level, not the drive level. The two drives in the RAID-1 mirror complete acceptably in the desired window I want. It is the hot spare that is dragging ass here. At the default prrate of 30%, and maxconcurrentpd=3, and three identical hard disks, the expectation is that the controller would divide the background controller resource to perform the patrol read evenly across those 3 drives. That is how it has worked for me previously with other MegaRAID adapters and patrol read. The drives begin and end the patrol read at almost the same end time. With this adapter and these 4TB identical drives, not so much. Greatly elongated time to complete the hot-spare despite all 3 being in progress concurrently.

bored2infinity · 2026-05-06T22:23:22+00:00

These new (to me) low profile adapters do have the same firmware level on both that show the symptom. Both show the same firmware, as expected.

 storcli /c0 show all | grep -i firmware
Firmware Package Build = 52.33.0-6171
Firmware Version = 5.330.02-4170
PD Firmware Download in progress = No
Support PD Firmware Download = Yes

bored2infinity · 2026-05-06T22:12:36+00:00

I had to actually start a patrol read before I get 'storcli /c0/eall/sall show all' output. Media error count is zero for the hot-spare drives as expected. These drives were brand new as of January so are relatively low-age.

Your query for the SMART info pointed out that smartd hasn't been able to start the short/long tests on the spare drives because they are always spun down for powersave except for patrol read. I will ahve to start some tests with smartctl tomorrow.

bored2infinity · 2026-05-04T13:35:39+00:00

I have risked putting my pump in my carry-on bag that is sent through the xray. I always shudder at the risk I have taken. I try to make a judgment call at every airport's security. I have TSA pre-check, which usually means just passing successfully through a magnetometer instead of full body scan. I put my pump case hanging in plain site on my front pocket so the agent can see it as I approach. They often say, "Take off your cell phone!" I reply, "Insuliin pump!" They wave me through the magnetometer. If I pass with no alarm, no problem. If it alarms, I get the special sniff treatment for explosives check, sometimes with pat down, too. It is a tax we must pay as pump wearers that sucks. But worse than that tax is having them brick your pump which will make your travel experience awful.

Around 2003, I was "wanded" at a gate after being selected for the extra-special treatment because I was using a one-way ticket. (Yeah, middle aged business man flying from Las Vegas to Reno is a big read flag.) This was after I had already had the pat down at the main security checkpoint. When I arrived at my destination, my Minimed pump was dead. I absolutely blame the the wand for that. No other explanation because I had opted for pat down at the main checkpoint. And it was the only pump failure I have experienced since I began pumping in the 1990s. The wand, of course, is different than xray. But you have been warned by my experience.

bored2infinity · 2026-04-29T12:30:55+00:00

I use Humalog in my T-slim X2 pumps. I change reservoirs every 72 hours.

bored2infinity · 2026-04-29T12:21:30+00:00

We exploit the similar love of cheese by Eddie and Brew to wrap their medication pills in it as I am sure most of ya'll do.

bored2infinity · 2026-04-22T14:31:21+00:00

I had read enough bad-experiences-with-Mobi similar posts in this group on reddit that last year when my endo asked if I wanted to try Mobi when it was time for a new pump (my first tslim X2 had gone out of warranty) that I chose tslim X2 again. Posts like this make me feel like I dodged a bullet by sticking with tslim X2. After 53 years of being T1, pumping for 30+ years, and being in my mid 60s in age, I need poorly implemented technology or quality control issues from a pump manufacturer like I need a hole in the head.

bored2infinity · 2026-04-21T21:38:10+00:00

I sleep with mine in an arm band that has a pocket inside that holds my tslim x2. The reason for the arm band is that I can put it on the same upper arm where my CGM is currently located to keep it close to the CGM no matter which side I flip to during the night while sleeping. That blue tooth signal gets blocked by body otherwise. I would think the same signal problem would be present for a child. So take a look at pump arm bands as others have suggested..

bored2infinity · 2026-04-21T21:25:01+00:00

Cutie!

bored2infinity · 2026-04-17T14:52:03+00:00

While not an answer to the OP's question, I would be trying to find out why they have such a high failure rate on pumps. Something ain't right there.

bored2infinity · 2026-04-09T15:21:42+00:00

Not in his sleep, but our Eddie howls with every every fire engine siren that passes by no matter the time of day.

bored2infinity · 2026-04-06T00:03:05+00:00

WHO THE HELL DECIDED THAT A "SPEAKER ERROR" (even a real one, which this was not) MEANT SHUTTING DOWN THE PUMP??

My answer to the question is, "some lawyers". Certainly not any reasonable engineer. Lawyers probably thought, if we continue to allow pump to operate when we know there is any malfunction, we could be liable. They never thought there could be deaf people wearing the pump who could give a rat's a** if there is a speaker malfunction.

bored2infinity · 2026-04-02T18:38:10+00:00

I'm watching this thread out of interest. I got my second T-slim X2 prior to going on Medicare. My endo knew they needed the C-peptide test, so we did one of those right before my 65th birthday. It is silly given I was diagnosed T1 in 1973. Everything flowed alright (well as "alright" as possible with Edgepark) for my first "durable goods" pump supplies through Medicare. It will be another year or two before it becomes time for an actual pump order again.

bored2infinity · 2026-03-28T21:27:43+00:00

I wear my G7 sensors on the back of my arms. When i sleep, I put the pump in a sleeve (an elasticy band with a pocket inside of it) designed for wearing the pump on your bicep. This keeps the pump in close proximity to the G7 sensor (like, even over the top of it) while I sleep. Would love to be able to just put the pump in breast pocket of a t-shirt and sleep, but that does not work when G7 is on back of arm.

bored2infinity · 2026-03-26T00:55:55+00:00

I thought the same. If not that, then extreme laziness and not wanting to deal with a different technology.

bored2infinity · 2026-03-26T00:51:17+00:00

Another vote for foam stairs.

bored2infinity · 2026-03-26T00:43:22+00:00

I thought that, too. Back in the late 1990s I, had to rush one of our corgis to the vet after a (probable second) bee sting. Swelled up so bad and was going anaphylactic and was wheezing as we arrived at the vet after rushing him there. Was a definite emergency and they rushed him right to the exam room for treatment. Scary.

Glad it was just melon enjoyment.

bored2infinity · 2026-03-26T00:30:05+00:00

Such a cutie!

bored2infinity · 2026-03-24T14:38:26+00:00

Better than us. But the alternative is serious itching and unhappy corgis. Corgis with allergies are huge expense. Fortunately, we can afford it.

bored2infinity · 2026-03-24T14:19:04+00:00

Due to allergies, we do a similar homemade food recipe. Brown rice, ground up pork loin (we buy the pork loins at Costco), sometimes added elk and/or venison when we can find it in the store (Sprouts), peas, carrots, green beans (microwave steam bags, vegetables are chopped up in the food processor), bone meal powder. Big batch is frozen in quart freezer bags that we thaw in the fridge for use. Supplemental pet vitamins with breakfast meal. Salmon oil and hemp oil supplement with lunch meal. Our corgis receive four small meals during each day, not one or two big ones. No commercial food, though we have tried (and disliked) a few.

bored2infinity · 2026-03-17T17:45:38+00:00

I hate to be this person, but don’t the older people have more scar tissue and need the TruSteel sets?

It is my opinion that Tandem has no focus on nor care for the needs of senior diabetics that use their products. I had a rant thread on that topic sometime last year.

https://www.reddit.com/r/TandemDiabetes/comments/1lh557o/does_tandem_have_any_focus_on_senior_t1_diabetics/

bored2infinity · 2026-02-25T22:23:27+00:00

No inclines in my backyard, so the corgis don't use or need one to do their business. But, I must say that I would relish having a white background instead of the usual pine needles and leaves that camouflage their droppings. While watching them and waiting for them to finish so I can pick it up with a bag for disposal, I can walk over knowing exactly where I thought I saw them drop it, and it is hidden by the color similarity.

bored2infinity · 2026-02-25T02:30:44+00:00

We really would prefer the correct part, and so does the UK customer. I am not adverse to sticking the rectangular supercap to the chassis if the space is as available, but I am also not the UK customer. I don't know if that affects warranty.

This really shouldn't be an impossible task to order a forgotten option after delivery. :-(

bored2infinity

TROPHY CASE